diff --git a/src/cli/cli.rs b/src/cli/cli.rs
index 4be7745..4ad7d3d 100644
--- a/src/cli/cli.rs
+++ b/src/cli/cli.rs
@@ -25,13 +25,22 @@ pub struct BallsCli {
     pub walk_step: f32,
 }
 
+#[derive(Args, Debug)]
+pub struct SurfaceProbabilityMeasureCli {
+    pub grid_size: u32,
+    pub stick_probability: f32,
+    pub initial_data: PathBuf,
+    pub particles: u32,
+}
+
 #[derive(Subcommand, Debug)]
 pub enum PCM {
     Initial(InitialCli),
     StickProbability(StickProbabilityCli),
     Grid3(StickProbabilityCli),
     Hex(StickProbabilityCli),
-    Balls(BallsCli)
+    Balls(BallsCli),
+    SurfaceProbabilityMeasure(SurfaceProbabilityMeasureCli),
 }
 
 #[derive(Parser, Debug)]
diff --git a/src/main.rs b/src/main.rs
index dfb27ea..0b5b9c5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,11 +2,13 @@
 #![feature(generic_const_exprs)]
 #![feature(let_chains)]
 
+use std::ops::Deref;
 use clap::Parser;
 use rand::prelude::*;
 use crate::cli::{drive_system};
-use crate::cli::cli::{StickProbabilityCli, InitialCli, BallsCli, PCM, ModelCli};
+use crate::cli::cli::{StickProbabilityCli, InitialCli, BallsCli, PCM, ModelCli, SurfaceProbabilityMeasureCli};
 use crate::cli::output::write;
+use crate::surface_probability_measure::{LoggerSticker, ReadOnlyVectorStorage};
 use crate::system::model::DLASystem;
 use crate::system::spaces::continuous::{ContinuousSticker, ContinuousStorage, ContinuousWalker};
 use crate::system::spaces::hexagonal::HexPosition;
@@ -95,5 +97,39 @@ fn main() {
             drive_system(&mut sys, cli.max_frames, cli.notify_every);
             write(&sys, cli.format, &cli.output);
         }
+
+        PCM::SurfaceProbabilityMeasure(SurfaceProbabilityMeasureCli { grid_size, stick_probability, particles, initial_data }) => {
+            let logger_sticker = LoggerSticker::new(stick_probability);
+
+            let mut sys = DLASystem::new(
+                SmallRng::seed_from_u64(cli.seed),
+                ReadOnlyVectorStorage::new(&initial_data, grid_size),
+                LocalRandomWalker,
+                UniformSpawner,
+                &logger_sticker,
+                cli.max_particles,
+            );
+
+            let particles = particles as usize;
+
+            while sys.running && logger_sticker.stick_positions.borrow().len() < particles {
+                sys.update();
+            }
+
+            let mut writer = csv::Writer::from_path(cli.output)
+                .expect("Failed to open output path");
+
+            let stick_positions = logger_sticker.stick_positions.borrow();
+
+            stick_positions
+                .iter()
+                .for_each(|pos|
+                    writer.serialize(pos)
+                        .expect("Failed to write position")
+                );
+
+            writer.flush()
+                .unwrap();
+        }
     }
 }
diff --git a/src/surface_probability_measure.rs b/src/surface_probability_measure.rs
index 25c46a7..df20df3 100644
--- a/src/surface_probability_measure.rs
+++ b/src/surface_probability_measure.rs
@@ -1,3 +1,5 @@
+use std::cell::RefCell;
+use std::path::{Path, PathBuf};
 use rand::rngs::SmallRng;
 use rand::{Rng, SeedableRng};
 use crate::system::model::DLASystem;
@@ -8,41 +10,61 @@ use crate::system::spawner::UniformSpawner;
 use crate::system::sticker::{ProbabilisticSticking, SimpleSticking, Sticker};
 use crate::system::walker::LocalRandomWalker;
 
-struct LoggerSticker {
-    inner: SimpleSticking
+pub struct LoggerSticker {
+    inner: ProbabilisticSticking,
+    pub stick_positions: RefCell<Vec<Grid2D>>,
 }
 
-impl<S: Storage<Grid2D>> Sticker<Grid2D, S> for LoggerSticker {
-    fn should_stick<R: Rng>(&self, rng: &mut R, space: &S, position: &Grid2D) -> bool {
-        if self.inner.should_stick(rng, space, position) {
-            println!("{:?}", position);
+impl LoggerSticker {
+    pub fn new(stick_probability: f32) -> LoggerSticker {
+        LoggerSticker {
+            inner: ProbabilisticSticking { stick_probability },
+            stick_positions: RefCell::new(Vec::new()),
         }
-
-        false
     }
 }
 
-struct ReadOnlyVectorStorage {
+impl<S: Storage<Grid2D>> Sticker<Grid2D, S> for &LoggerSticker {
+    fn should_stick<R: Rng>(&self, rng: &mut R, space: &S, position: &Grid2D) -> bool {
+        let should_stick = self.inner.should_stick(rng, space, position);
+
+        if should_stick {
+            self.stick_positions.borrow_mut()
+                .push(position.clone());
+        }
+
+        // Writes are ignored so we deposit to delete the particle but it is not written
+        should_stick
+    }
+}
+
+pub struct ReadOnlyVectorStorage {
     inner: VectorStorage,
 }
 
+impl ReadOnlyVectorStorage {
+    pub fn new(path: &Path, grid_size: u32) -> ReadOnlyVectorStorage {
+        let mut inner = VectorStorage::new(grid_size, 2);
+        let positions: Vec<Grid2D> = csv::Reader::from_path(path)
+            .expect("Failed to read initial data")
+            .deserialize::<Grid2D>()
+            .map(|row| row.expect("Failed to read row"))
+            .collect();
+
+        for pos in positions {
+            inner.deposit(&pos);
+        }
+
+        ReadOnlyVectorStorage { inner }
+    }
+}
+
 impl Storage<Grid2D> for ReadOnlyVectorStorage {
     fn is_occupied(&self, position: &Grid2D) -> bool {
         self.inner.is_occupied(position)
     }
 
     fn deposit(&mut self, position: &Grid2D) {
-        eprintln!("Write ignore for space at {position:?}");
+        eprintln!("Write ignored for space at {position:?}");
     }
 }
-
-pub fn surface_probability_measure(seed: u64, max_particles: usize, stick_probability: f32) -> DLASystem<SmallRng, Grid2D, VectorStorage, LocalRandomWalker, UniformSpawner, ProbabilisticSticking> {
-    DLASystem::new(
-        SmallRng::seed_from_u64(seed),
-        VectorStorage::new(1600, 3),
-        LocalRandomWalker,
-        UniformSpawner,
-        ProbabilisticSticking { stick_probability },
-        max_particles,
-    )
-}