Doug,
I was going to chime in, but most of what was said covers most of the situation. (I'm also suffering on some dry lanes recently.)
If I were you, I'd watch the balancing act of coverstock strength and how much you kick out the MB (or virtual MB). Jeff's ball speed, as sammy indicated, requires a smaller angle - 30 degrees. Depending on ball speed and axis tilt and rotation angle and actual oil length, your combination may, probably should be different. No Limit is a much stronger cover and core than Ice. Whirlwind sounds like a nice compromise.
Good Luck.
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"None are so blind as those who will not see."