Not a problem, so the HD forums are pretty much hit and miss, more miss though. There are some great older threads out there with some information, but newer threads seem to die with little traction. I've tried (with other issues), and the other thing, although helpful, a lot of them are way... off base with troubleshooting stuff. With the idle sputtering issue someone told me it might have been parade mode coming on...(parade mode shuts off the rear cylinder and helps with heat, it also resets when you turn the bike off, and there is a dash light when it's on...)
I believe this breakdown was caused from the belt, and from it just being old. It's actually was at the end of the tension setting, so I kinda new it had to be replaced soon. Here's another good one for you, HD and another mechanic told me the belts actually shrink over time??? What how?? Not from what I have seen.
As for the transmssion I've just had some thoughts something might be off in there, and since I was tearing this down, I thought it might be good for me to investigate it, but the more I've reviewed it and the shift linkages, the transmission seems ok, the shifter and primary need some work done to fix up the sloppiness.
I've found YouTube to be the best source once you find the right video, which allows you to see the parts, and they will mention some issues and how to solve them. And GTAM of course!