I ran 1-1/4" Chubby T-bars for over 2 years, and I'm now running 1-1/4" Double Z-bars, the Z-bars have a flat spot on them and our switch block and mastercylinder fit there nicely, the T-bars didn't have a flat spot & everything worked great for me no problems at all,

“There is no heaven, there is no ******, except here on Earth.”