Since you have a variety of options' you need a variety of surfaces. I would take the Summit down to 1000. The more surface you have the more you will blend in the wet/dry. When Brad Miller won the Bradley a week ago (55 foot pattern); he said he used an Origin at 220 grit. So dont be afraid to go rougher with the surface. I would then put the X-Ponent and Sublime down to 2000, then everything else leave at box finish. Since most of your balls are high end; you need to create separation between them. If it were me. I would take the Summit at 1000 grit and during the 10 minutes of practice, play straight up around 10-12 boards and see if you can help blend in the wet/dry. Another thing is asyms on wet/dry tend to be a bad combination because they tend to roll forward (especially with high pin placements like you have). So unless your axis rotation is at least 60 degrees, it could explain a lot of those 10 pins. The rule of thumb is you want a symmetric ball with surface because the hook window is longer which helps in blending in the wet/dry.
Ultimately you have 2 options. You take a ball with a lot of surface and play inside the dry and use the dry as your miss room. Or, you can move your feet left, open your angles and play the bump. As crazy as it sounds, my rev rate is over 500 and I encounter this at my center. What works for me was a symmetric ball at fresh 2000 standing on 30 with my left foot, targeting 15 at the arrows with my breakpoint outside the 5 board. The 1-3 boards are so dry it is almost impossible to throw it in the gutter. So instead of playing tight and risking leaving 2-10s all night, I play the dry to ensure some ball motion. At least I know I can get to the pocket that way.
Do you know if they are going to play around and tweak the shot? If not, it doesnt hurt to ask. Dont come off as complaining but just simply ask if they intend to tweak the pattern or if they plan on leaving it that way. If they say they are not going to change it, then set aside a time when you can go practice 3 or 4 games. CTDbowling.com sells sanding pads that are good by hand and dont require a spinner. I personally use them and they are fantastic. So as you are practicing, you can keep freshening up the surface if you want to without making mutiple trips to the pro shop. But practicing, you can go at your own pace and give yourself time to think and just try different things. When bowling league, you can only do so much. Rule of thumb, is you want to sand down a symmetric, find out where the dry starts, and play just inside it. If you hit the dry early, it should not over react but if you miss in it still has a chance to hold.
