Having thrown a pure plastic ball, and the XXXL, and not having a profile from you to read, unless you have an extreme amount of hand, I would highly recommend the XXXL. Yes, it's expensive for a plastic ball, but worth it, if carry and energy retention have any value on dry lanes.
I was definitely not a believer, until I had a chance to throw one. Now - I wouldn't use the XXXL for right side spares on most conditions - I have my maxim for that. But it stays in the truck for the true toast condtitions.
NOTE: You will not get the great big hook and finish out of the XXXL. But it will hook, it will finish, and it will HIT. Did I say HIT? Oh - I meant to say HIT!!!