Yet another "watk vs stat" question...

Damage formulas, in general, are something like
w.atk * (4*primary + secondary) * multiplier

Er... How much is the multiplier variable?

The only time primary stat is better than w.atk is if you have more w.atk than primary stat (say for example 180 total w.atk to 160 total str)

In in other words, almost never? When you say more watk than your primary stat, do you mean your total primary stat after %stat potentials? I have 1575 Luk, and 230 total watk (excluding energizer drink, but including %atk potential). Just thinking about have more watk then primary stat is unreachable.

So for example, judging by my total luk... 10 watk is better than say 5% luk potential? Or better yet, how much %luk potential will it take to be more beneficial than the 10 watk?

Also, do atk potions get effected by %attack potentials, and do %stat potentials effect your total luk or just base?