Is this yonex regular clamp? or, since it says "strong", is it for high tension purposes? How high tension can it take? I usually string my racquets at 26x29 or 27x30lbs. http://www.badmintonalley.com/YONEX_Stringing_Flying_Clamp_p/tools-yonex-flying-clamp.htm I'm currently using hiqua clamps, which I find will is not strong enough for tensions above ~25lbs. Anything above 25lbs, strings will slip. Yes I know I can use 4 clamps to avoid this slippage, and that's what i'm doing now. I have 2 hi-qua clamps, and 2 adjustable clamps. The adjustable clamps slows down my stringing time, hence I want either 2 more hi-qua clamps, or even better, if 2 yonex strong clips can support above 25lbs by themselves. Since I string my racquets often, i'm getting sick and tired of stringing , sowhatever helps to decrease my stringing time would be good! Thanks!