Requesting sins for help with punch formula

I'm pretty sure I've got it right, but I'd like verification from other sins in the game with a wide variety of weapons, levels, and equipment to check my formula.

Here's the formula I have for sins punching.

MAX = (STR + DEX + LUK) * Weapon Attack / 150
MIN = (STR + DEX + LUK * 0.1) * Weapon Attack / 150

Can anyone aid me in this?

I have two sins, how exactly do we check your formula? D:

Punch orange mushrooms.

Assuming your formula doesn't account for Star Attack, my Khaini sin's punch range is 42~109. I hit 42 several times, but could only get one 108, and every other number in between. D: This was at the lower floor at HH1.
Seems pretty accurate. ;o
Stats:
4 STR
105 DEX
240 LUK
47 ATK


My Windian sin's range is 8~20, and I saw a few 5s, 6s, and 7s on Red Snails. Didn't think Def took that much out. ;o
Highest I saw was 15.
Stats:
5 STR
75 DEX
175 LK
12 ATK