My 2 cents for whatever it's worth:
With the Uprising being finished at 4000 grit Abralon PLUS a high gloss polish, I doubt it will be used for heavy oil by anyone short of Robert Smith-tpye revs. Both BTM and BJI reviews indicated a great ball for medium oil with its stock surface. A friend used it for the last 2 weeks of summer league on a medium+ oil, playing an outside line. He has above average revs and he had a great look with TERRIFIC pin action and carry.
Another thread in the Track (or the Miscellaneous) forum had several comments (some from lou, I believe) by people who had used it with 1000 & 2000 grit Abralon, no polish, and they were able to use it on much heavier oil.
The Swing comes sanded, much duller, 2000 grit abralon, no polish, and it is for medium-heavy oil. Both BTM and BJI had some good things to say about it, but not quite as much as they liked the UpRising for medium oil, though. (BJI positively overflowed with praise for the UpRising!)
Based on the reviews and on the comments I have seen so far, and on a couple of friends throwin the UpRising, I'd be more tempted (in fact, I have been EXTREMELY tempted to get one) to get 2 UpRisings, leave one polished for mediums and sand one duller for heavier oil patterns.
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