One other thought, I am now 63, as I age timing and strength wane even though I work out constantly to stay fit and strong, but Father time does have his way. I think its getting harder as I age to have success/consistency with more "whippy/wristy strokes" and smoother and easier but still with good racket head speed are producing better results.
Curious about your handle weighting. Since the 98s is only one point HL, is the reason for you adding 9g in the upper half of the handle to make it more HL? And why not put the bulk of the weight down near the butt of the handle, or even inside the cap? Just a few years younger than you and looking to get the Blade v7 16x19 but not crazy about the balance and would probably tail weight it up a bit to make it more HL.