Beginner Painting: Using Contrast Paints

I try to get Contrast painting going again, squuzing in an hour or two tonight to get something going.

Trial 1

Preparations:
1. Brush Primed
2. Black Primer
3. Slapchop using Grey, then White
4. 4x Snakebite Leather + 1x Contrast Medium on Wet Pallette
Method:
1. Apply using stabbing method
2. Apply 1 coat
Results:
1. Almost no Streaking
2. Almost no pooling
3. Decent Edge Highlights
4. Pretty light coverage