300 Dex?? Nah thats just insane! I got like 195 into dex (With gear) and my zon has a 91% chance to hit Baal, and a 34% to be hit on hell!
Strafe?? Come on now strafe is kinda like zeal, it just shoots 1 arrow at multiple tragets, great for Normal but 1 arrow at 10 different tragets in NM and then Hell will be pretty hard to kill things with!