I have played with the seat position quite a bit. Sliding back definitely takes some pressure off of the hand, but i feel like I'm reaching way forward. Sliding it forward gets my upper body in a better position with relation to the bars but adds pressure to my wrists and today my left knee started bothering me after some intervals. I really just need a shorter reach unfortunately.
My vo2 intervals went well today though. I just did 3x4 min with 4 min rest between, skipped my fourth one because my knee started bothering me a little. The numbers show I'm getting stronger for sure.