I read somewhere on here that prothane bushings are sloted to keep the grease in...that would be awesome!

Anyhow, for the BAT bar, does anyone know if these bushings would be ok?
prothane bushings


99 T-green svt K&N & heatshield Opt. y-pipe Borla Superchip DMD Magnecore wires Metal impeller water pump BAT / Bilstein kit 21mm BAT bar w/ boxed subframe 215/45/ZR17 Toyo Proxes FZ on Rage 5.0's jimmkreider@yahoo.com