Mate, I'm no expert but...
Ask yourself, seriously why would they want to leave the dancefloor to chat with you when they're having fun dancing? That would be a fruitless endeavour trying that tactic dude.
If you want to sarge on the dancefloor, learn dancefloor game, which is a specific subset of game, and it's nonverbal. (I'm guessing you don't know about dancefloor game....?)
If you want to do the 'verbal stuff' the logical answer - go somewhere that you can be heard.
Yes the dancefloor has lots of women....but does that mean it's the best place to run pickup? I'll let you answer that yourself.
FYI I'm in Kent, so not a million miles from you
