Special abilitys (SA's)

i sm soo to be one the newest B grade ppl on Hindemith( :D) and i just got my lance and enchanted it to +3...but it has no SA..my C wep had wide blow on it nad to be honest...i didnt realy see any real differance..so i was wondering several things...
1. What SA would be good for a lvl 52 Dwarf Warsmith?(pole user only)
2. How do i put an SA on my lance?
3. is it worth the time/adena i assume it is gona cost to put an SA on the lance..considering A grade isnt to far off?

Scratch #3...after B grade ill have no adena left for A :D

1# Crit Stun
2# Blacksmith
3# A grade is actually a long way off, those 9 levels take some time.