I went through the same thing when I got my second dimension. My normal alley proshop didn't have my ball so I went to a place about 30 mins away that had totally different lane conditions, and just told the driller that I was a medium rev, tweener bowler bowling on medium to light lanes. And it worked perfectly on my normal bowling alley.
So basically just tell the person who is drilling your ball the conditions of the lane and how you bowl and they should be able to help you out.
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Chargin' mai lazer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!