I have been riding a SUP (presently a 9-6 BM custom) for about 5 years. I have been finless since October. Inspired by Ryan Helm, I thought it looked like like fun. There is not much info out there on how to pursue this. Just tantalizing clips of masters like RH making it look really easy. It's not!
After many frustrating short attempts, I went cold turkey and ditched my fins "until I figure this out".
Things I had never considered became massive challenges like, paddling out, and catching a wave, any wave! It is a
very humbling experience! Ignoring your instincts is a significant part of the challenge. After adjusting my mindset to "beginner mode" and relaxing about rate of progress, things slowly started to come together. Now I am enjoying myself and looking for better waves. I learn something in every session now. There are many ways to turn, some previously unknown to me. Now I am working on combining them into potentially really funky ways to ride a wave.

My friends see me struggling, and say but why??
When I manage to pull off or figure out something that I have been struggling with, the feeling is very nice.
That satisfaction is a bit addictive.

Any tips or shared experience would be greatfully accepted.