Hmm, nice guide. I havn't read the entire thread, so this might have been already asked - but every other FAQ/Guide I've read recommends Exploding Arrows over Splitting Arrows. In fact, most say that exp. arrows is the best AOE attack in the game?
Also, the advantage of having extra enchant/charm slots on DW weapons, far outweighs the extra damage of 2H?? Especially taking into consideration +magic damage, that effects spell damage as well.