I'm going to be bowling on a super over under this summer. It's basically a 6-6 super overunder. I cannot play the gutter because I can't keep even uthathane on line there. If you try to swing the bank, you leave to many combinations, you never get the same reaction twice. I have played very straight inside and have had some success, there's just enough backend. Want Roto is built best for super heavy oil....Thank you in advance for your suggestions....