Hop-up should be dry....
FYI you can modify the slide release to make it "tool-less":
http://www.pbase.com/racingmaniac/image/120865551
http://www.pbase.com/racingmaniac/image/120865553
Its relatively soft steel and I just file it with a needle file...you just need to make a lead-in for the pin so it pushes the plunger back as you push it in...