black widow nasty or sting

[rpm1]

I would like your opinions on the above i have a option to buy one of the above

how good are these balls,did they sell well for hammer

which ball has replaced these and is it better ?

cover puck technology ? was is it a step forward, and has it worked for hammer

[Mellen]

I have not had the chance to throw the Nasty, but I do own a Sting. I have it drilled pin under and it is set to hook early. I have had nothing but success with this ball on medium to heavy oil. I keep the cover at 1000 and use Clean and Dull after each set I roll with it.