Now that I think about it the only time urethane has ever ruined a shot for me was when I was throwing urethane. 

That is exactly what I meant.  I have backed myself into a corner using urethane, and have seen pros do the sane thing multiple times.  Urethane is so condition specific, and is impacted more by carrydiwn that it is a common occurrence. 

Yes.  The big advantage to resin when it first came out 25 years ago was that it would cut through the carrydown urethane created, and create less csrrydown itself.  Csrrydown was a huge factor pre resin, but became a non factor until the oil volumes increased so much to combat the absorption of the resin balls. 


It would be nice if there was some way to enforce a rule that would limit surface adjustments and keep them at 3-4000.  High rev guys could still blow up patterns, but not nearly so quickly.

these new higher flaring urethane balls like the hot cell or widow urethane will cut down on urethane carrydown though because they flare a lot more than "normal urethane" so really the only carrydown should be when the bowties hit the lane.....in theory