From what I have seen, both balls handle oil well, but react differently and handle the oil in a different way:
The AI is a typical Brusnwick low RG ball - it will start to roll early, and is therefore rather unimpressed by oil. The Rough Buff surface give traction, too. Not a real heavy oil ball, but playable on a wide range of conditions. A friend has one with an early reaction drilling, and it breaks after 35-40' and the goes directly to the pins.
The Vertigo has in box condition more overall traction, some players around here even polish it because the coverstock is very aggressive. The Vertigo with some glaze seems to go longer, and then makes a sharper, curved move.
All in all, I think the AI is easier to control, but the Vertigo is offering more potential for experieced players.
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DizzyFugu --- Reporting from Germany
Team "X" league website: http://homepage.mac.com/timlinked/
"All that we see or seem, is but a dream within a dream..." - Edgar Allen Poe
