I got tired of waiting for my finger to get better and started playing again today. I think I realized the cause. I jammed it badly in college playing football, and I don't think it ever healed properly. Sometimes it feels like there is a little bit of wiggle in the joint. I think using that finger so much while playing just got it acting up a little bit.
So I have 3 songs left in hard to pass on GHI. About 9 songs left in hard on GHII. I don't like the GHII songs as much though, so I'm not as excited about getting through those.
