Ok..
a little update...
i have thrown the ball last night in medium oil
with top hat pattern.
i tried rolling it with a different release, without bending the wrist, this makes the ball draw the track near the thumb but not through the thumb..
the ball goes longer and make a real later hook.. but it needs the dry part of the lane clean, and a bit part of the dry edge to be aggressive and forgivable.. hits really hard, but i have to take care of the release.. a little mistake causes the thumb rolling and the ball goes straighter than any plastic ball.!! (ideal for 10 pins!)
greetings to all...
Rodrigo T.
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"Knowledge is Power".