I'm running my players through an all-dwarf campaign, i.e., they're a party of 5 dwarven characters all from the same Barrow. The adventures so far have been loosely-coupled around protecting the interests of the Barrow and the dwarven king.
The group is all level 5 now and I'm working them towards playing a conversion of G1-G3 Against the Giants that I'm working on. I'm planning on taking them there once they reach 8th level.
Play last weekend got me thinking. In their current adventure they chewed through a band of ogres easily, primarily due to their dwarven training ability which gives them a +4 dodge bonus vs. giants. The ogres struggled to inflict any damage on them.
When I take them through Against the Giants, should I increase the encounter difficulty to compensate for the dwarven training? Would a CR 1 increase be sufficient? Or CR 2 or more? I considered putting some type of effect in place to negate that training, but that seems too heavy-handed to me.
Any advice would be appreciated.