James,
Most of us have found the Blue Vibe, using its stock surface, to be a medium-light oil ball. With your rev rate, and maybe with some surface changes, it will handle medium-heavy oil, but I would not characterize in that fashion for that amount of oil for most of us. The reviews in BTM and BJI seem to generally go along with this idea also.
While the Red/Black Bash hooks less due to its low flaring core, the coverstock probably allows it to cover similar amounts of oil, if in a more direct way.
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"None are so blind as those who will not see."