Thanx for the replies.
It does look like AA trades in a whole buncha damage in return for hitting every time.
I'm not sure whether it is worth it - depends on what you're facing, I suppose.
I'll build up Norfina Soul-Spike, if only becuase I would like AA to work 8o)
As an alternative, I have been looking at a rogue archer, based upon the Bioware build: 4ftr/16 rg/1ftr/18rg/1ftr (used to have SD in, I chose to lose HiPS).
While the enemy are suceptible to Sneak, and the AB is enough .. lots of damage.
As soon as they are Sneak Immune, or AC high enough ... zip.
Not knowin the high levels of the module, I'm not sure whch approach will work better.
19rg/2wiz/19AA ? hmmm ... defintaely somethign to consider. Doesn't it compromise damage for AB (and vice versa)? In PnP games I have found this can sometimes lead to not enough AB to hit, and even if you do hit, not enough damage to mean anything ... Or maybe the mix is right - enoguh AB to hit most times, enough Sneak to cause significant wounds.
#gets out calculator, mashes keys for a while ...
#notices 2:30AM
#goes to bed