Weapon style feats ... lightning mace/three mountain

[schreier]

Reading through the handbook, I don't see any restriction against using multiple styles other than the weapons they require.

The aptitude special ability allows weapon-specific feats to apply to that weapon. There is a pretty well established use with that lightning mace feat.

If you had a double mace (from ae&g) with the aptitude enchantment on each head, could you use both styles simultaneously? Obviously it's a big feat investment but seems fun?

[Biffoniacus_Furiou]

With aptitude it doesn't even need to be a mace, use kukris or any other 18-20 weapon so lightning maces occurs more often.