the boards are different; at least that is my opinion. A 168 is usually engineered differently...shape may be different (look at the tail) and ride is not the same, either . A 162 can stilll make some pretty sharp turns that a 168 won't make (look at sidecut). I remember a Rossi Levitation 162 that I hated, but changed it for a 169 and loved it-and still take it for one run a year...well, it was my fav graphic, too-some of you may know which one it was...after all, I am a rastamon...

Lucky for you, the Jeremy is a fairly soft board, as far as freeride boards go. I've ridden both, and am a little over an inch taller than you. The 162 is really manageable, where the 166 can feel a bit like a boat at times. Like I said, it's a soft board, so the inch and a half isn't super noticeable. It also has a fairly scoopy nose, which equals less edge contact length (a plus for the 66). I see that you normally ride a Salomon Definition. I'm not too familiar with that board, but what size is it? That might help out.