In between which step dito papasok ang pag gamit ng Swirl X/ Scratch X?

1. Washing
2. Mom's Step 2
3. Mom's Step 3
4. NanoSLiq

Feel free to comment on this combo as well. Once I purchase collinite from sir jerome, ima replace step 3 with collinite... unless u guys think na ok sila sabay (Step 3 + collinite)