Alan,
As for the Equation and Delta, while they do share identical covers (Goo LS) the Equation is pearl while the Delta is a dull solid. Delta starts up much earlier and has a smoother backend, while the Equation can have a wicked backend due to the pearl polished cover and the dense nugget in the core.
Actually, I can see where this would make a decent 2 ball combo....
As for the Mean, Strike, and Delta, while I do not have a Strike, the Mean and Delta are very similar. I have not had them beside each other, but I would venture to say due to the 800 or 900 grit cover the Delta came at, it would start sooner and have less backend than the Mean. I believe the Strike will be the longest of the 3 and have the most backend potential out of the 3.
All of these assumptions are done with factory covers...
Clint
--------------------
Clint Daley-Owner
Lets Go Bowling Daley
Inside Hunt Club Lanes
Salem, Ohio 44460
Track Pro Shop staff
www.trackbowling.comwww.letsgobowlingdaley.comI NOW ACCEPT ALL CREDIT CARDS, NO MORE NEED FOR PAYPAL OR MONEY ORDERS IF WE DON'T HAVE TO....JUST PM ME TO GET MY SHOP NUMBER TO COMPLETE THE TRANSACTION!