hummm
... so why? do you think you have a lot of thread on that ring ?? why don't you reduce the aluminum inner tube by 1 mm and get rid of your problem once and for all. solution I posted here more than a year ago(and I posted again a few times in the meantime)... and you are still in it ??
it's just a tube... yourtube
Haha again, the effort of sanding down the aluminum tube, to a specific degree like that evenly, is not so simple for me personally!
I think sanding down some of the threading on the top ring, would also not be something I really want to do, though I think it would be a little easier and simple to do... I also can feel some unevenness there, so I think it being smoother, a little shallower, could help... No good?? I think someone else had posted about having done that here too...
But also we're not 100% sure that's going to solve my problem, what I need to do is first test the tube from my original TM in the new one, just to see if that confirms what you say, but also how that affects the tightness of the o-ring, me getting my stems in and out, because that is the problem I would like to solve really... Getting the top ring screwed down all the way, that's not necessary, I am fine with it the way it is now, but yeah that keeps the o-ring and the stems fit tight...
I knew just mentioning it would bring you out! lol I'll make sure to tag you when I post here after I test the old tube in the new TM!