alosso:(3) I wouldn't bet on this, though the only analogy that I have is that balls with the same "durability" number may differ in the number of shots they take.
This thing is driving me insane!! :-)
You can't count neither on durability... O_o So, even if I buy only balls with durability 2.5, I can obtain different wearing time... So even in this "easy number" we have hidden secrets!! Almost incredible!!
Now, to return to my original problem...
I've played with Volvik L51 until I get Nike VR Forged Irons at level 85, then I've tested the Nike L60 'cause they had the same spin, but also a 0.5 slower meter.
Now that I can take more ding than before, I'm going to buy the Nike L81. With these ball I'll get a 1.5 bonus in Distance w.r.t. L61 ones, but, obviously, I'll have to modify all my Excel course book notes...
And if math & stats can't help me... It will be a blood's bath! :-)
Thanks again, alosso!
LucaB76