I am playing Mitsubishi Kuro Kage Dual Core Black 60HY, Regular flex shafts in my Titleist TS2 21, 23, and 25 degree hybrids. I love the high ball flight this shaft provides, but find it to be a bit unstable. My driver swing speed is about 90 mph. Is there a shaft that will provide slightly more stability while maintaining most of the high ball flight? Perhaps the same shaft in a Stiff flex, or perhaps the 70HY model in Regular flex? I’ve tried the TENSEI AV Blue Hybrid 70 in Regular flex, but it seems a bit too board-like and low-flying.