I was doing the -125% to aux 1 / flap switch to activate the gun and I accidentily set the offset to -85 and I can't set it back to 0 or any other number. Anyone have a suggestion?

I'd just do a data reset, it's on page 66 of my Spektrum DX6 manual. Hope that helps, I'm sure others here can tell you how to get it to -125 without the reset.

I had the same issue and the reset resolved it.

Will do, thnks !

sorry, has been a bit since I posted here.

I do have mine all setup, and like it all so far. I do have a question however.

my KT is faster in reverse, then it is going forward? I would assume this is incorrect?
and if this is so, how do I get it to be faster in its forward gears, then reverse?

Try adding some +trim in the direction of forward? Maybe some -trim on the reverse?

thanks Paul, I have tried the trim settings, end points, swapping motor
wires etc. she is still faster in reverse?

You could try this, remove the hull from the chassis, put it on blocks so you can run it and observe the motors, gearbox and drive train. Run it and see if you notice anything odd, gear whine in forward, track not running smoothly in forward etc.