Hit a curb in a pace line, went flying (2018). Broke my left hand and it is now marginally but permanently limited in motion and grip. Middle and ring fingers have loss of motion. I can fully extend but not grip. Took me off the bike until this past winter. I'm finally back on but utterly uncomfortable riding with anyone. Thankfully, with Di2 synchro I can put the vast majority of shift duties onto the right shifters.
As closed grip as I can.