Same here, wasn't lucky enough to be chosen for the playtest, but I ordered demo, arrived yesterday. The demo came with RPM Hurricane 1.30. I'm not familiar with that string, according to my tennis tension app, it was about 43 lbs, I was a little surprised that the demo was strung that low, but I usually play poly in mid 40s, so no issue for me. First session last night, whippy and fast through the air, but I've been hitting long than usual, still adjusting to getting more control of the ball.
Anyone has experience with that string (RPM Hurricane), maybe there's a break-in period. To me, it feels very average. I'm thinking of putting other strings in it to try.
I recently demoed new vcore 98 as well, of course different string set up. But Vcore 98 seems more forgiving and easier to generate spin. PA98 has more of linear response and more powerful than vcore 98. Both racquets are very good at serve.