YankeeJim:
LeonDelBosque: if you actually count the hits, they're only slightly more durable than the the Tour SDs -
This is why I switched to the Callaway ball. With 2 1/2 times the durability of the SD ball the cost came close enough to warrant switching.
It DOESN"T HAVE 2 1/2 times the durability .... It has 2.5 times the dots, yes, but I personally counted shots on the SD and got 110; according to others who counted the Callaways it was 120 or 125. This is why I said don't be fooled by the dots. I also counted the GI-SD (I think -- the SD with feel/dove ball) and got 90 (1 durability dot). Yes, the Callaway is more durable, but only, really, half a dot more if 90 is the baseline. You certainly won't get 225 hits out of 'em. I'm pretty sure the same holds true with the Srixons.
As a general rule:
1 dot = 90
1.5 = 110
2.5 = 120
see the chart -- there's a link above. the Callaways really are expensive