Whay stick flex should I use?

I am a high school defenseman, I am around 160 lbs 6'2'', and I currently am using an Easton EQ30 with an 85 flex. I used to use an SE2 with a 65 flex, and noticed my wrist shots were much faster and my snappers were a bit whippier (this was a year ago when I was around 140 lbs). Since I've gone to an 85, my slap shots (my primary shot) have gotten a hell of a lot faster and more accurate. I was wondering if I should keep buying 85 flex sticks, or go to a 100 flex. --just so you know, I grow fast and am lifting weights and stuff, and I have never broken a stick. So I will probably have this stick for a while.