Hey Toxin.
I'm in the same situation, well sort of. I was just about to submit my primary today, but got some good feedback from a good friend of mine at Mt. Sinai last night. So, I'm thinking that 3 or 4 more days (i.e. this weekend!) is not too detrminental in being content with a Personal Statement. Besides, I'm taking the MCAT in August, so my app (transcripts, LOR's, scores, Secondaries, etc.) won't be "complete"/looked at by Adm Comms. until mid-October, right?
As long as you are happy with what you finally submit, and it's not TOO late, it should be fine.
By the way, are you taking the Aug MCAT too?