You don't go to many meets do ya - check the 198 and 220 raw classes
I'm no powerlifter however you rarely see a competitive powerlifter that is lean and cut
Anyway - Ive been eating primal for 6 months - my lifts are all still going up while I dropped several weight classes (SHW to 220). I was out for several years after an off road accident and wont compete again till '12 (plan on raw 198 masters) - so it might be a bit of retraining effect (after 1and1/2 years I should be past that though) ya need muscle to lift not fat and you get all the muscle building protein ya need by eating primal - the saturated fat is good for natural test production. I personally eat some organic fruit pre and post workout for my glycogen stores. While many things will effect your lifts you can expect to compete in a lower weight class and even if you only maintain instead of gain on your lifts while cutting the new class should make a place easier.
"First say to yourself what you would be; and then do what you have to do" - Epictetus