Yes, they would be. But none of my three Champ Banshees are very slippery to me. So, whoever said they are... go throw them upside down in a parking lot and scuff 'em up...
I let my fingers do the talking. So, your's aren't slippery? Huh. Go figure. I bet they still look like dirty dish water though.
No. Beautiful, flat Jolly Launcher Champion Banshees are in order, number one. Make it so.