Replying to FKS Dilemma

So heres the dilemma yall, i found a deal on the fks 180 and i could get them for a buck fifty. The only reason im hesitant to purchase them is the fact that the din starts at 8 and that i would be at the bottom of the bindings din range. I weigh about 160 and am a level 3 plus skiier, so i usually ride with a din of 8.5. So how bad is it to ski with a binding with the din at the lower end of the range. i dont wanna have to worry about the ski not releasing when it should. So is it safe for me to ride this binding if i could get it fro $150?