If I have a HJC XXL helmet that fits perfectly, would other HJC XXL helmets fit me the same, even if it was a different model, IE: I have an AC-12 and am looking to buy a cheapo helmet that I don't care if it gets stanky and stuff if I am riding home from the gym or something, and I saw some CL-14s for 40 bucks on closeout at ironpony.com, but am leary to buy them without trying them on. I have a monster noggin.