Troll & Ogre slam

[malroth69]

Just wanted to ask something about slam for the Ogre and Troll SK's. From what I have read, that slam is better than bash with 2 hander, but I was under the impression that slam only did 1 point of damage. So when the SK's get bash, does hitting slam increase and get bash's skill points? I am curious because from what I have read I see a couple contradictory statements about using slam instead of bash? (this is all with 2 handers).

Thank you all in advance!