Update on the Boron.
I got it restrung with RPM Team 17 (at 60lbs. I had asked for 40 but I guess "they knew better" and it's settled at 50lbs).
The power I had on the serves has lowered but I'm getting more spin. So I'm still getting more aces - again about 5-6 per set but it's not through sheer mph but pace and spin. And service winners are up as well.
Still tinkering with string - will try Kirschbaum Spiky Shark 17 next at 35 or 40 lbs and I have my own stringer now so no more hassles with stringer punks who "know better".
And back to back with my POG OS, the Boron is very close in playing feel, with a bit more power.
PS my USA Boron is at the Mailbox place and I'll pick it up Wednesday - can't wait to hit with it.