13, to answer your question i would have to say that the conditions that i bowl league on are considered "soft". On the other hand the lane surface is guardian over wood ( very high friction surface ) so no matter what pattern you put out it plays drier than normal. Secondly the league that i set the record in alternated early and late shifts every week so this was a little more challenging than normal.
My PBA average is right around 218.
By the way, thanks for the nice comments everybody. Jeff Carter