I am on my own Otto-Phlex journey now. Driver has always been a big weakness of mine. When it is on I can play awesome. Most of the time it is not on.
Purchased a UST Helium Black 4 - Regular Flex that I purchase from CPO for $50.
My gamer Driver is the Ventus TR Blue 6x with my swing speed around 113-115 mph.
I am a high spin player. I have a 9 degree Callaway Rogue ST Triple Diamond. Hopefully I can keep spin in check for this experiment. I like the idea of smoother, easier swings with comparable results to full out.