I've been experimenting with my changing body, seeing how much and how far I can ride, and if the exercises and PT I am doing daily will allow me to ride without extreme referred leg pain from my back and SI joint problems.

Hopefully, time will be your friend, and you will find your elbow continuously getting better. I wouldn't dump all the diamonds right now.

I did 12 slow high cadence miles the other day, and 10 today - on the mtn bike. I have a bit of post-ride pain (I have no pain while riding, just afterwards), but not the extreme post-ride pain I had a few months ago.

I wish you the very best, be it diamond or recumbent or whatever.