So, did some testing and it looks like spin gains are negligible between a full poly and hybrid. Power numbers were also very similar, which supports that stroke mechanics play the biggest role in those regards. The biggest difference were more on launch angle, as my depth of shots dramatically decreased. Throughout the session, I avg'd 1300 rpm and 65 mph regardless of the string type. I did however, have to make stroke adjustments at some point with the polys, adding shape to the shot and taking off pace. At that point, rpm's jumped to the 2000s with the speed at around 50 on avg but I was forced to grind out points.
Sadly, thats not my game. I like to be an aggressive baseliner and I could not do that with my quality opponent. Had to switch back to the hybrid strings to flatten out my shot and penetrate a little deeper
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I have to say, Big Hitter Black 7 was the preferred between that and weiss cannon ultra cable. Felt softer, with better feel. The sweet spot contact was really nice.
Sticking to the poly/origin cross for now. I think the racket is just too low powered and the stringbed too dense to try and develop some kind of spinny game behind it.