tough question. Every house that i bowled the PBAx leagues, all the shots were different. None of them played the same. Blame it on the oil machine, the oil being used, the lane surface, heat/humidity and everything else. Plus, lets face it, not everyone plays them correctly and because of this, they will not break down the same every week. If bowl.com still has the video of Barnes and friends explaining all the patterns, I would take a look, but remember, this is only a guideline. You will have to figure it out yourself, once you bowl and see how different your lanes might be compared to the actual PBA condition. Just keep in mind, straighter is better.
Another point, rumor has it that USBC is not going to renew its contract with the PBA. If so, not sure what USBC will do about PBAx leagues. Might just be a name change, but we will have to wait to see.