Gerald,
Perhaps it is true, but the problem I am experiencing, and I believe Adam is, as well, is NOT a slowing down of the starter motor. Its a temporary total cessation of anything, then immediately the starter turns and in my case immediately starts the engine. It's just that "dead space" or as Adam says, "hesitation".
Now, given that you know now that our problem is NOT a slowly turning starter, but instead, a hesitation, are you saying that it still couldn't possibly 100% be a failing circuit in this solenoid?
The sound is like HEAVY CLUNK (which sounds like the starter moved, but immediately stopped), then hesitation 1/4 to 1/2 second perhaps, then starter starts engine. As Adam said, it's more of an annoyance and he was going to ignore it, until I reported it, and no one else seemingly has had the issue but us.
Even if not many of us have experienced the problem in our coaches, most have probably experienced something similar in our cars. I did, in my jeep, and after several months in that case the starter eventually got replaced, so that may be the issue here as well.
Thanks,
Mike