Are you racing outdoor or indoor?
head up start I agreed 4wd is quicker than 2wd....Back in the days
ROAR used to have two drive classes...it was fun day for me
I had the Yokomo YRF-2
Outdoors
at the moment I am only using an FF02 as a toe in the water but its doing surprisingly well. Back in the day I had a seriously modified TA02-FF (or FF01 as people like to call them these days) and it was massively faster than anything 4WD then