1st Class Kitty Whip is unlike any other Kiity I’ve played both Classic and the Signatures. I just got a sampler pack of the yellow, Initially I though it would be an XXL as that variant hadn’t been offered yet in 1st Class. Thickness wise its like a FAT, and it is not soft, its rather stiff and crisp similar to Markmont Dragons. They did take a little bit of play to break in and stretch. They have lasted a bit and I kind of like tactile freelining of the abrasiveness as they do slide on themselves and in the hands with out burn. Do they Whip anymore than 1st Class Fat? not really but they do have a nice open loop when slacking or whipping and had a descent sweet spot of holding tension consistantly. If you are are a fan of soft nylons, these are definitely not soft, so I could see these not being everyone’s cup of tea.