I’m running Pikes dropped to 120mm on my Sherpa and the thing is a pure weapon :)
I’m 6ft2 and about 14.5st so not far off you. Cant say I’ve ever thought it felt to high. I suppose it can wander a little bit on steeper climbs but I dont care as it descends so well. My first 29er and I’m sold on it’s performance.
If you lie your climbing more than descending go for something with 100mm if not get the pikes or similair 120mm forks.
Pikes were the slightly expensive option but I wanted the stiffer chassis they offer. You’ll have to buy the 120mm air spring assembly and swap out the 140mm they come with. Easy job though.
Good choice on the Sherpa though. Brilliant bike….