Thanks Inverted 1 for the feedback. One more question, if AI is now in box finish and would like to sand it to 400 and polished. Can I just placed the ball on the spinner and proceed to sand it down or do I have to follow the re-con procedure of start sanding from rough then go down the way to the required grit and then polish it ? The Pro shop guys said must follow the re-con way, it is true? Thanks