Yes, that was the first thing I did to my bike, adjustment wise, the actual first thing was greasing the swingarm linkage, every greasable bearing and pivot, anti siezing all the fasterners, and replacing the horrible Bridgestones w/ dunlop 756. I rode my buddies 06, before I bought mine, and he had his set up stock with like a 1/2 inch sticking out, it twitched terribly at speed, and would not take a sweeper for anything.
Dropping the forks made a big difference in stability, and cornering, but it wasn't enough for me, the extra 10mm of sag (95mm) was the ticket.(recommended sag is 105mm) I experimented w/ 5mm, 7mm, & 12mm as well. 12mm made the turning to slow for tight eastern trails I ride, 5 & 7mm was still a little twitchy wide open.
I also use alot of rebound dampening, 5 out from seated with the valving have now, it allows the the bike to settle into turns, complements the sag setting, by laying the rake back, and the whole pogo stick feeling it had stock it gone completely.
Are you having it valved for MX or offroad?