Don't be too quick to give up on it: seems like you could find a stem with a shorter reach than the one you have. And nothing stretches you out farther than mustache bars; anything else would bring you in. Flats would bring you way back. Even dirt drops would bring you in I think. That is a very cool bike and you should see if you can dial it in.

By the way, on your other bike, if you are riding on the flats of the bullhorns a lot, I suspect that it may be too long for you also. The whole point of bullhorns is that you should just sort of naturally fall into the position out on the horns.

Bullhorns and mustache bars muck up all the conventional wisdom about bike fitting. Because of my chimpanzee-like build they happen to be very useful to me, but I wonder how normal humans use them. Maybe you are a flatbar guy instead?

jim