Hello, realativly new sledder here. I've been riding my 01 Zl with a 121 x 15" track for the past 3 winters and I am looking at getting a used 05-06 F7 , All the firecats I see have a 13.5" track. My question is what are the benefits of this track and what are the drawbacks? I am about 6' and 250 so will the smaller track make my sled a little more tipsy? Any help would be great.