You're the last one up the rope. At about 20 feet into the climb, you realize that you forgot/dropped your ___________. (insert important cave gear here) You have to go back down to get it.
What do you do? Downclimb or changover to rappel?
The reason I ask, is because I think I can downclimb 20 feet faster than I could do a changeover and then rappel.
At what height WOULD you consider a changeover the only realistic option? 15 feet, 30 feet, or ???
Just curious about a "what if" situation.......