Currently running a 70mm stem, don't want to go any shorter. As I said, technique probably the biggest problem, but what I'm curious about is whether "higher" bars will create more leverage around the effective point of rotation when lifting the front end – if that makes sense??
The bike does climb quite well, so don't want to sacrifice too much of that, however I'd rather give up a bit of climbing prowess if it means avoiding a face plant situation………..
Incidently my hardtail is far more fun/confidence inspiring on the downs than my FS and it has a slightly longer stem and higher rise bars, of course there are a plethora of other geometric differences which together make it hard to directly compare.