Very interesting and unique thread.
One important question for me: Is broken in string that was initially strung tighter, then played with for an extensive time (6 months) the same as initially string a racquet at low tension?
I always figured that when I string at 54lbs I expect my strings to drop to 50lbs within a few hours. That is on my 16x19 pattern. But when I play with a 18x20 pattern, I string at the tension I want. I might try 40lbs but I can't see myself trying tension any lower.
I am guessing that stringing at 30lbs goes by very quick. The tensioner must catch pretty quick and the clamps wouldn't have any draw back.