Hi Shao,
I would recommend the Animal but dull it to about 600-800 for your heavy oil condition. You can always bring it back if it's too much but from what I've seen with mine, it rolls thru the thicker oils pretty well. The pattern I'd suggest would be something like a pin under your fingers and place the mass bias in your VAL or even past it for sooner roll. It would help tremendously if you knew more of your personal information so I could be a little more precise with the layout. Please check to see if you can get the information and post it so I can get a better feel of how you throw the ball, thanks.
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Rick Leong
Ten Pins Pro Shop
Track Pro Shop Staff
Vise Grip Staff