i bought this used ball, before christmas,from a bowling alley that i bowl at for 25.00 and was the best ball that i ever had.i have been bowling with a 16 lb.  hammer for about 7 or 8 yrs. and i never got close to a 300 game.on DEC.23,i bowled a 280!!!!!!! since that day i have been so confident in my bowlng 2 days a week,i have been in the paper more than ever before with 600 series. i have come a long way baby,all because of storm erasure.thank you very much!