[ Both of the other games that I've played here that use this ruleset (Gatekeepers and Hunted) have either eventually gone to the system you mentioned or just started with it.  However, I would agree with what Anime said in that if someone builds specifically for it, either through class abilities, spells, or other methods, it makes it very easy for them to just take an opponent effectively out of the fight completely with two rolls.  That being said, it requires a fair amount of specialization on their part, but the possibility is there.  It would also require working around a few of the feats to fit the new system.<br/><br/>As for the nutrion and VP changes, the rules are fairly ambiguous as to how VPs are supposed to be handed out.  I would assume that it's some percentage of the enemy's XP value, but there isn't a metric mentioned anywhere that I can find.  Of course, there is also the Ambrosia item, which as far as I can tell is how you 'buy' VP. ]