I'm bowling on medium to medium/light lanes. They are freshly oiled before league starts. To me, given what I've seen thus far, on two different nights, same house, I just don't need to take a heavy oiler with me, nor do I really need a dry lane ball. With that thought in mind, taking six balls, one of which is a spare ball only, my arsenal looks like this:

Epic: medium/heavy
Epic Saga: medium, but heavier end of medium
Horizon: Medium
Silver Streak SE: Medium but the lighter end of medium
Venus: medium/light
Columbia Blue Dot...spares

Sound reasonable?

Chuck

Too many balls JMO.  If they don't change that much.  Use your bench mark ball w/ appropriate bench mark drilling and go from there.  3 balls with spare ball is enough for just about any average THS.  You're just carrying extra weight and becoming more confused.
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Scott