Originally Posted by RCGaryK

It's not a brake trim, it's a travel adjust. It dictates how much travel your brake has. It is a percentage of the travel set in the sub-menu. Here's what I mean...

Push the scroller selector in and scroll down to Travel.
Highlight TH and push the scroller selector in
Scroll down to highlight the twin 100%'s and push the scroller selector in.
This screen adjusts the OVERALL travel of your throttle.

The BR on the main screen sets the amount of travel within the limits you set in the Travel screen. So if you set your travel to 85% in that menu screen as an example...

At 100% on the Main menu you'll have 85% of total travel OR 100% of 85% travel. If you set it to 50% on the main menu you have 50% of 85% travel, or roughly 42 1/2% of total possible travel. It can get convoluted but does this make sense?