Just curious if anyone messes with end-bell timing on brushless, or do you stick to the ESC software for timing adjustments?

I was playing around and got what it seems more RPM just messing around with the end-bell, but have not run the vehicle as such.

Maybe it's best to leave it at 0, or dead even at the mark on the can?

I'm using a Losi Xcelorin sensored ESC on Orion Motors.