Minnesota_stroker - The full roller layout is designed to reverse the flare (compared to flare with a normal 3/4 layout) so the track flares away from both the thumb and fingers (with the full roller track). If a ball with this layout is rolled with a 3/4 release, the flare will still be reversed, and the track will flare into the thumb hole. If you have a plastic ball with a pancake core, it would be better to work on learning the 3/4 release with it, because it will not flare very much and you should be able to see the oil ring clearly in either a full roller or 3/4 track.
In my experience, it is difficult for a natural full roller to convert to a 3/4 release, and vice versa. Sawbones will disagree with this, because he is one that has converted and did so fairly easily. The full roller release starts with the thumb at 9:00 and fingers at 3:00, and the thumb rotates toward 12:00 in release. The wrist is normally broken back slightly. The 3/4 release starts with the thumb at 11:00 and fingers at 5:00, and the thumb rotates toward 9:00 in the release. The wrist is normally cocked slightly. Good luck -- JohnP