my junk runs a TA 8" converter with mech diode, very solid converter. has lasted years without needing any work done to it. i use the A&A Ultimate brake with LBA & safe neutral, very quick release brake, i'm sold on this combo. John Cope used to sell Grinners, but now he doesn't. not sure what that means.... but i've never heard of complaints with A&A, but i have with Grinner.