No, I made no such assumption. The assumption I did (and continue) to make is that the beads must be free to <reach> whatever relative position they [for lack of a better word] 'should' be in after the tire accelerates. That is when I believe the plug tail will get in the way- while the beads are traveling, not necessarily when they are static (assuming they do reach equilibrium and tend to stay in one place after the tire is accelerated to speed).
Just as an aside Clyde, it seems that sometimes you get a bit defensive when no defense is necessary. I was not attacking you, Dyna beads or anything else. In fact, I actually like you Clyde although I do think that occasionally you could reach behind you and pull that stick out just a little bit (not all the way because that stick is part of your charm). This is a great forum and I like participating here, and I like reading your participation too. But occasionally you seem a little sensitive. And believe me, I am aware of your language and behavior preferences and already take them into consideration, in addition to many other things, when I do post. So please consider that we may really all be on the same side, more or less.
Brian
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Your other misapprehension is that the beads are continually rolling around the tire. Once the bike/tire is up to speed, they are for the most part stable in their location. Since the plug slightly alters the balance point of the wheel/tire, the beads' location will likely shift somewhat from the pre-puncture pattern.
Cheers.