So glad I read this. Being a newbie, today will be my 5th day, I thought that the razor should be lifted of the strop at the end of the stroke but that the most important thing was having the edge lifted off the strop first.

Just tried stropping with the spine never leaving the strop and it felt so much better. It was also a much faster transition although being new I'm still very slow in comparison to videos I've seen. Still not totally comfortable with stropping but hopefully getting better.

Thanks