Ask an Aran thread.

I'm a little confused at your statement. About the supersnowboard 90% of my blood board thing.

 My Equips

Replace the with hat with a Zhelm 16/15/16/17
Necklace to a Deputy Star 5/5/5/5
Ring to 2 w.atk 2/2/2/2
polearm is not in use anymore [using super snowboard]
Add in a 2.atk 6 dex PAC

In reply to bolded part,
Add up all of your weapon attack as if you could equip the super snowboard:
14 WG
92 super board
1 att ring
____
107 total

Now with the other polearm
14 WG
113 blood board
1 att ring
_____
128 total


Now divide the totals

107/128 ~ 83%

So with just those things giving you attack, your total weapon attack with the super board is 83% of your attack with the blood board. So no... it's not worth it...

BUT, if you add in other attack equips you might get later...

14 att WG
3? att cape
3 att ring (when you get to level 70)
2 att shoes (now that shoe att scrolls are out this might be much more easily possible)
92 super board
12 att pot?
____
126

14 att WG
3? att cape
3 att ring (when you get to level 70)
2 att shoes (now that shoe att scrolls are out this might be much more easily possible)
113 blood board
12 att pot
____
147


126/147 ~ 85% Still no good

Let's try with an apple:

214/235 ~ 91% So it'll be worth it only while appled. AKA boss runs. So during boss runs, if you're appled, take the super board. Otherwise the other one is stronger. Do note though that if it's harder to combo since you're killing things too quickly with one versus the other it might be worth it to use the weaker board.