Wanting to try something different, I bought sets of SIT Silencers, D'Addario Halfwounds, and GHS Pressurewounds. The SITs are nice right out of the box, for the price. Same deal with GHS. Anyway, I digress... After stringing the DAds I swear my hands felt grimey and sticky. Washed up, played some more but same grimey feeling came back. Wiped them down with alcohol...which left streaks of black junk on the rag. This is the second time this has happened with brand new DAd's...flatwounds before this. It's a little irritating to me because they're definitely dirty and need to be cleaned up before using them. Anybody else experience this? Is this not unusual?