only if your mind thinks you need bigger ….
ive had monster Ts (arguably the stiffest forks ever made….triple clamps with the same size stantions as your totems ….)
and i now run 80mm rebas and sids … i cant think of a time where ive thought i need stiffer forks …..longer yes stiffer no …. my front wheel always goes where i want it through good route planning ….
anyone can plough a big travel bike through anything and claim its skill …ive been there and done that. the real good guys are the ones who ride nothing down stuff people struggle with on big bikes like kern a guy who almost got scoffed at for wanting to ride the black route at laggan on his azonic steelhead with kinesis maxlight rigid forks and about 10cms of spacers under his stem….ugly inapropriate bike ….still showed us a thing or too down the black route and embarased a few of the 6 inch travel boys …or raggedonair on here who took his turner down kilbopath faster than most of the dh guys i used to ride with could !
of course the above doesnt apply if you ride a rigid steel singlespeed just to be alternative !