I know Dean' s page well. Been there several times. If you don' t feel comfortable shooting it then don' t.
" KaBooms" can happen in ANY gun, not just Glocks. I' ve seen pictures also, of Ruger Redhawks, Beretta 92' s, Sig 229' s, 1911' s etc... all with " KB" ' s. Like I said before a " KB" can happen with factory loads due to a double charge or bullet setback. Recently a Police Department had three " KB" ' s in one day [

] shooting factory Federal ammo. I can' t figure out why they didn' t stop shooting after the second one......
I' ve never heard Glock say not to shoot +P' s but hey I really don' t talk to Glock alot

I will look around though, I just don' t see how it' s safe in a 9mm and not in a .45acp when the guns are designed the same. Not to mention the 10mm. Also the .357sig which is pretty much a 9mm+P+ bottlenecked.
As for the .400Corbon, Glockmeister also sales those.