I've decided to make minor tweaks to two classes: The Dwarven Delver and the Elven Ranger. For whatever reason, the classes simply aren't resonating with players; no one in any of our playtest campaigns has volunteered to select them. Hopefully I can fix that.
Here are the revisions:
Dwarven Delver: Dwarven Delvers lose the much-maligned "Mapping" class power and replace it with "Backstab". This more closely aligns the Dwarven Delver with a thief-like archetype, and gives him a bit more striking power. It also makes a Delver-Machinist classes a nice set, neatly assigning the "scouting" functions to the Delver and the "lockpicking/trap removal" functions to the Machinist.
Elven Ranger: The Elven Ranger loses the "Pass Without Trace" class power and replaces it with "Tracking". I initially thought that players would prefer "Pass Without Trace" because of its vaguely magical effect, but, in actual play, its very rare that adventurers worry about covering their tracks, and quite common that they want to track enemies. Moreover, pretty much everyone who has looked at the Elven Ranger has assumed this class would be able to track, and its lack of ability to do so is perceived as a skill tax. One further tweak I made is that the Elven Ranger can *also* take Tracking proficiency, improving his Tracking by +4 each time, so its possible for a level 1 Ranger to be quite a formidable tracker. The Elven Ranger is not an "uber-class," but its combination of Beast Friendship, Precise Shot, Tracking, and elven racial powers makes it "feel" right, I think; it'll resonate well with fans of 1e Rangers, fans of WoW-style hunters, and Legolas lovers.
I hope these last-minute changes are well received, and put all of our new classes into that happy place of balance and fun.