Only problem is that you need to hit the platform on a specific spot.

See my issue with the strat is not the platform but the bump in the wall. any tips to get that? xD

Negrodomus, I think the key to getting this is that you don't want to slide along the wall for long. Just barely tap the wall, and then jump off again. After the bump, slide into the wall above it and do a backwards wavedash on top to get going towards the goal.