I threw a Resurence for all 3 events and had a very decent look. I used a 5" pinout with pin 4.25" from my PAP (at about 1:30). Righthanded, 370rpm, 18.5mph at release, 45deg rotation and quite a bit of tilt (but not a spinbiscuit - yet). Surface was box 1000 for team, and then 4000 for minors. I started about 15 (arrows) to 12 (break) in team and finished around 18-13, although I gave up some carry with the inside breakpoint (231-200-192, last game flag-10 in 10th that cost me some brackets). Doubles were hooking and I had to start much deeper than where I left off, even with reduced surface, and shot 180-204-204 with my usual big4 start. Singles I probably did have much too much surface and just tried to control the pocket from deep, finishing the 9th game crossing 24 to 9 at 45 feet. My breakpoint for games 7 and 8 migrated out from 11 to 10 as they opened up. I shot 203-202-212, which I might have been satisfied with had I not gone 29 clean with a 5-7 in the last ball(!). I'll have to wait until I get the video to see what happened there, because it felt good off my hand. I thought I threw about 100 pins better in singles than I scored, but my 1828 gave me an average 2.5x multiplier in senior brackets in all 3 events. Honestly the Resurgence was fine, but I could have used polish for singles.
Actually, I threw this ball for a reason. When I got to Albuquerque I went straight to the Ebonite booth to visit with Jacki and Cal, asking them what they thought was scoring. (If they haven't seen you bowl, its a good idea to bring a laptop with some video clips). Cal worked with me for 2 hours adjusting my finger pitches, and I came out with a Resurgence and Blue Dot with clear my hand better than my old gear. In retrospect, I should have had my other gear finger-plugged and adjusted, but I didn't think the change warranted it. I ended up using these 2 balls for 9 games.
If you have enough ball speed to control the pocket and a confident spare game, it seems pretty easy to stay 570+, which from what I saw gives you a positive cash flow in the brackets. Consequently, if getting something punched up at the Ebonite booth increases your score at all, that money is recoverable. I'd probably recommend against grip changes at the tournament unless your hand hurts like mine did.
Side events - the BJ was oily even for me. I used the Resurgence at 4000. I bowled one doubles set (about -50) and went across the street for the BTM. In contrast to the BJ, the BTM was dead hooking. The air conditioning was busted and as we moved to the end of the house the scores dropped dramatically. Even though they had fans going, it must have been in the 90's inside and it became increasingly difficult for me to clear the thumb at the required ball speed. Not a pretty set, and in retrospect, I'll never bowl again if I even suspect the A/C isn't working.
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"In my experience, there's no such thing as luck" -- Obi-Wan Kenobi.