Try 'Pitch Min' to something like -60 (or more) and set 'ALT_CTRL_ALG' to 1. That will tend to use the elevator more, and essentially puts ArduPlane into altitude priority mode, as opposed to airspeed priority.
Don't pull the wings off when you pull out :)
For now, I'm only simming, so not yet worried about G-forces... ;-)
Sounds great -- I'll try it once I get my other sitch fixed --
see my other post of today about gyros...
Dive commands worked great! You should have seen the wings warble... ;-)
FYI -- the command is "Lim_Pitch_Min" ...