Thank you for your replies. I found a few things which helped. I'd say its much better but I'd still like for it to be even better. I checked the wheel nuts and tightened them good. I did follow the servo saver directions originally as far as tighten tight as you can and then back off 3 turns BUT... since I have a metal gear servo, I tightened it up quite a bit. I had reused a receiver from another model. It had AVC active, so I turned off AVC. I also set the limits back to 100%. I can turn the wheels left/right and there's a small bit of servo groan at the end but not loud buzzing, so the end points are about where they should be.
One part I find very odd (and I don't think I've had this trouble on ANY car/truck that I've ever owned) is the steering doesn't return to center on its own. What I mean is that if I'm cruising around the yard and stop, it will likely be off center. If I turn the wheel left or right when stopped, then it will stop in the center, but if I'm driving in anything other than a straight line, the truck won't stop with the wheels centered. BTW. I did check for "slop" in the steering. There is some, I'd guess between 1/8 and 1/4" which seems excessive to me? For a kit off this quality I'd expect almost no slop?
I also have a Castle Connect on order and plan to increase the BEC from 5.5 (default I think) to 8.0V as I verified both the D950TW and SR4210 can handle up to 8.4V.
I'm using the metal TKR5253B servo arm and not the plastic one with the kit. I can get a pic posted tomorrow. It's roughly parallel with the nub from the steering rack, per the assembly directions.
If I have AVC disabled, does the
AVC calibration matter at all? I'm guessing not since AVC is disabled? This was a bit of a long shot but thought it might be worth a try.
It's an issue when running at speed. I can only really run at maybe 1/3 speed in my back yard. Any other 1/10 or 1/8 model would normally be pretty easy to roll due to tuning too tight "yanking the wheel" (even on X-MAXX) but I can't get this truck to do it, which makes me think something is still off with the steering.