Picked up a 715T today.  I had a 930T, 65 x 5 x 30, that didn't match up that well to me.  I plugged and redrilled it 70 x 3.5 x 40, which was better but carry was suspect.  Anyway, I've been having trouble with high diff balls, especially drilled with shortish VAL measurements(40 or less).

With the 715T, I'm thinking 60 x 4.5 x 65, which puts the mb alittle right of my thumb and the pin under ring.  I'm hoping this gives me a strong arcing backend motion.  I can't seem to dial in strong assy with high diffs for myself.  

For those that have or had both, how much difference in overall strength between these two?
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