The V2 sweet was essentially a remake of the V2 pearl. The two are very close (I've thrown both) in reaction shape and number of boards. The sweet is typically 2-3 boards weaker overall than the pearl. Sorry, I won't give up my pearl, I like that ball way too much.
You may want to check some of the sites that seem to keep stockpiles of the older equipment such as bowlingballmall.com (I'm not affiliated with them in any way).
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J.J. "Waterola Kid" Anderson, the bLowling King : Kill the back row