Thanks for the reply, I did check the spring and adjust it up as much as I could without popping it off of the holder. I don't have anything to compare the spring height with though because I cant remember how it was when I originally got it.
The battery is tight enough where it doesn't sag or fall out without the cover on. I have been getting lots of sparking lately though. I'm thinking to order a few more 18650s just to make sure its not the top of the battery getting smashed down by the telescopic mods I have.
I'll check how it is with the adjusted spring today and report back. Thanks