man I tried the air bubble thing just now and it didn't work. I pulled .5cc of air into the barrel and filled up the gear as always and injected. The needle hurt alot more going in...bc usually there is a couple of drops of gear on it to lubricate it but not this time. But thats not all, there was still gear left in the barrel AND I bled like crazy this time...thats never happens. So, I guess what I am asking is...can I grab some sterile cotton seed oil at the local grocery store or something? I mean is there anywhere local I can get something that will solve this problem?? In addition, this time I felt some pain (aching type of pain) immediately after of the injection. HELP