Like much flying training, the foggles thing is a matter of playing the game. If you cheat then you are the loser! I think the IMC/simulated IMC is mostly mind over matter. If you are wearing foggles in VMC and have an instructor beside you then mentally it is quite different from flying VFR into IMC and ****ting yourself, unless you have trained and practiced until you are comfortable with IMC.
After 29 renewals of my instrument rating, I much prefer real IMC to simulated using foggles or hoods or whatever. They give you tunnel vision whereas if you are not ****ting bricks about being in IMC then you can sit back and relax and take in the whole instrument panel as you scan.
In IMC my "cockpit cocoon" becomes my whole world!
Dr 