ok the p14 style and p18 style are WAAAAAY different, the toe peice on a p14 DOESN'T work like the heel of a p18, or else it wouldn't be capable of fliping over itself,the pivot system on p18's,zr18's, rossi 185's, and 155's, is BY FAR the best. P14's, and scratch 140's (or 12's and 120's) is good for a lighter not as serious skier but they will break easy if you ski hard, (there 90% plastic) but some pivots will last you at least a few pairs of skis.