Ok, I got a NEW(used but didn't look like it) XXXL earlier this week. I still have not plugged it up and drilled it for myself.
I was throwing a little earlier tonight and I could not help it, I just wanted to see what it would do. It is drilled with for finger inserts, and I do not use them. The previous owner wanted to keep the grips, so there are none in it.
I picked it up and threw probably about 9 shots with it (remember, no inserts, and the HUGE holes). I was just amazed watching that ball roll, and flip. Plastic is not supposed to do that. I cannot really say how the hit was, because with my speed and rotation, every plastic ball I have ever thrown hits awesomely.
It seemed pretty readable, and it has certainly peaked my interest in the XXL.