impressive, 51! thanks for taking the time to experiment with all these variables. i have always regretted that i didn't do more testing "before and after" with my strut. now, my mini shoots well enough that i am afraid to do anymore tinkering.
as i recall, many posters got varying results simply by paying close attention to where they placed the clamps on their struts, basically seeking a "sweet spot" to get the best results controlling barrel vibrations. i just followed the general directions and got good results.
i also seem to remember that kevin of accu-strut mentioned using some sort of "dampener" in his struts early in production, but came to the conclusion that there was not enough accuracy benefit to add the extra weight. if you get a chance, you might bend kevin's ear (nest engineering) over at the peeyew..smart guy who has done a bunch of testing with struts.
i have also always wanted to see if someone was willing to test how well struts act as a heat sink....i noticed a very different level of heat after i installed my strut. i would be curious what the difference was.
have you ever had problems with the strut slipping from recoil? i had to loctite mine! good to go after that!
well, keep it up. interested in your results...