RE: Spektrum DX3S Issue
I will try that as soon as I get a chance (probably later tonight) and post the results.
I first noticed the problem with a Mamba Max Pro ESC with an SR300 receiver. I had driven that very vehicle not long before that and had no such issue. However, I still didn't think much of it until a few days later when I completed my TLR 22 buggy with a brand new Tekin RS Pro and SR3300T receiver and found it had the same issue.
I will try swapping the ESC and servo. It will also be interesting to see not only what the servo does on the throttle channel, but if the ESC stays in neutral when on the steering channel.
Edit: Also, both ESCs will not arm when initially powered up until they see a neutral position on the transmitter, and since this problem started I often have to blip reverse a time or two before it stays in neutral long enough to arm the ESC. So apparently the issue is occurring even before the ESCs arm.