Casey,
I'm doing EASY with DC#2 now and I've honestly come to the conclusion that they will nap longer when they hit the developmental milestone. I drove myself completely insane with DS (#1) and he just eventually started napping on his own, I knew it had nothing to do with my efforts. As for DD, she's a much easier baby, but I'm still having the same issues with her-short naps, only by this time DS was napping well (she's 4 mos.) and she's getting better, but not quite there yet. I fought the naps with her for 6/7 weeks and then just decided to roll with it. When she gets up I let her fuss (not scream) for a few minutes and if she starts to get really upset, I just go get her up. Lately, if she's had 2 short naps and can't get herself settled back down after the second nap, I get her up and hold her for the rest of the nap and we're all better off, she's happier and I didn't drive myself insane trying to get her back to sleep.
IMHO, if they can put themselves to sleep initially, that's the biggest battle, they will eventually be able to soothe themselves back to sleep after that first sleep cycle. Do what you need to to keep your sanity now, just be consistent in your efforts and it will get better!