how strong is the 3.3 tranny?

hey fellas, would you consider keeping the mechanical brakes a good thing? how taxed would the 1515 and MMM be using the engine for brakes?

i found my output shafts dont like being snatched into reverse at 30 MPH, did the FOC after that. followed the sticky from the master BrianG.

i guess the robinson gear set would be pretty much the ultimate upgrade.