The very open 16x20 really kills polys! But you get amazing spin for a players racquet. I played with the v2 for a while but have moved on. I miss hitting the slice serve with it though; you can get the ball to really curve.
Good. Don't really mind that it kills polys since I have been very successfully not using them for a year now. My wrist thanks me. My elbow thanks me, even after I continue to model my game after Jelena Ostapenko and hit most balls fairly hard.
I have a couple V3s and a V2. One of each has been strung with a Federer/Serena Williams style reverse hybrid, so gut main/poly or sometimes (such sacrilege!) synthetic gut cross. Lots of power, very comfortable, great control. Spin, not so much--have had to change technique a bit and provide my own instead of relying on shaped strings to catch the ball. It's taken some work to get the topspin back on my serves, but I don't mind much since I've missed no time at all from elbow soreness in over a year, and can go through 300 or so practice serves day after day with no discomfort. I've thought about messing with other hybrid combos, or putting a poly on the main, but don't want to mess much with success. I have one other V3 set up with multifibre that I save for wet days or times when we might see rain just to protect the gut in the other two racquets.
I'd be interested in hearing recommendations for other racquets or setups that are similar to give them a try, but both the Diadems have done very well for me so would need a really good recommendation to want to change.
