The K90 has a hard plastic piece at the end of the pallet, under the buttcap. The plastic piece seems to serve as the base or platform for the buttcap, and doubles as a buttweight. If you've ever removed the grip on a K90 you may have noticed that you can also see four black plastic tabs peeking through the pallet foam just above the buttcap. I think these tabs are part of this plastic piece. The plastic piece appears to be a 'sub-buttcap' that is attached to the raw graphite handle. Then Wilson lays the foam of the pallet over everything. In the past, manufacturers have stuck lead weights between the two graphite shafts that make up the handle - a butt weight. I think Wilson decided they may as well make a butt weight that has some structural purpose - this plastic piece. Maybe this has something to do with the braided construction of the K90 - the braided graphite/kevlar fabric might not be that robust at its 'end'. So, I'm wondering if anyone has cut a K90, or other Wilson racquet that also has this hard plastic 'sub-buttcap'. Anyone? Any practical info on this (weird and foolish) subject would be appreciated. Opinions are also welcome, but please refrain from comments such as: "It's stupid to cut a K90; what, are you a midget?", etc.