At the moment the bridge comes off the body of the guitar slightly. Should i tighten it up so its flat against the body or is it supposed to be like this?

Well when I had heavier strings on, it raised a bit from the body, but then I switched to to .42 strings, it went flat. Kinda annoying since the whammy bar doesn't seem to work as well now.
yea mines raising slightly with 42 strings, it always has. I dread to think what would happen if i put heavy strings on it :
Well I had a .46 I think on it for the low E string, kept popping out of the nut. I still have the problem though not as frequent.