May I make a couple of suggestions and a couple of notes .... (I'm sure most of you know this, but sometimes a mental refresher helps us all.)

 

1. When a ball is finished to P500 grit, then P4000 grit, remember that P4000 grit surface is very sensitive to use. That is, the P4000 grit disappears and changes over a relatively short period of games bowled, depending on both the roughness of the lane surface AND the amount of revs the bowler has.If both are high, the period of time before the ball's surface needs to be refreshed will be shorter. The first couple of times, you probably just need to refresh the "4000 grit "layer". Maybe every 2-3 times, you need to refresh the whole ball with both the P500 grit underlayment and the P4000 grit surface layer.

 

2. Such balls have a fairly rough underlayment (P500 grit), and those large surfaces are used to absorb oil and they absorb oil rapidly especially when used on heavy oil. That means they need to have the oil extracted professionally and/or thoroughly, much more frequently than ordinary balls. That might be as early as 25 games or as long as 50 - 75 games. Only the bowler watching the progress of the ball from day to day can determine when it needs oil extraction. But if you don't do it, you will soon have a $250 light oil ball.

 

3. With such strong balls, as the Nano (and make no mistake, it seems to be as powerful as the original Virtual Gravity was, in terms of carry power.) you have to have a very sharp eye to determine whether the ball is burning up because there's not enough oil OR if it actually needs more surface. Your ball speed/rev rate ratio is a VERY important factor in this equation. The higher your ball speed is the more likely you need more surface. I'd bet in the case of many of you who might be thinking you need more surface on your Nano, you probably actually  need less.