Rxtreme

I'm currently looking to buy my first rig. My exit weight is 155 lbs. and I have made 20 jumps. I've been considering either a Safire 149 (1.0 wing loading) or 169 (.88 wing loading). There is currently a 169 for sale at my DZ. Is .88 so light that the canopy won't perform the way is should? Would I be better off waiting until I find a 149? I'd like to stay conservative, but still buy something that I'll enjoy jumping for quite a while. Thanks in advance for any advice and thoughts... Brian