I have used inner bar ends at the TD. They are great. However, I would stick with using older bar ends and just wrapping them in ESI grips. I tried the SQLabs inner bar ends at my last TD. They worked for a while, but eventually the ergo shape proved TOO ergo and ended up aggravating my ulnar nerve horribly. I will go back to using regular bar ends. I have these old Easton and they are great.
Thanks for the real world experience Furiousbot.
I was looking at the SQlabs ones but they seemed rather short in length, thanks for your feedback on those.
Bummer about the ulnar nerve pressure, which is something I've also dealt with over the years racing ultras. Finally have it figured out for the most part but don't want to re-aggravate anything on an experiment.
Some cheap old aluminum things wrapped in layers of bar tape is probably the route I would try.