"thinking about getting into these, having played BGW a fair amount in the 90s
I take it they do not have the turn phases that BG has, what are the other major differences or learning curves for someone familiar with the BG series?"
The biggest problem with BG games is that the cavalry charge phase immediately follows the movement phase which gives cavalry a tremendous advantage; they can suddenly appear out of nowhere and then charge, giving them very often a 2000 yard charge; for example, from behind a hill, move 14 hexes by road movement, take a few hits on the defensive fire phase and then charge 7 hexes. Tiller solved this problem with HPS games by having the charge phase at the beginning of the movement phase. von Egan