Stuka Pull-Out Procedure?

[LukeFF]

(Note: I do not have the game yet, so I am basing this off other's observations)

Apparently, the Stuka's bombs will automatically be released when the plane has reached a pre-determined altitude with the dive brakes extended. Extensive research by Jippo, who modeled the Stuka cockpit in Il2, conflicts with this. He says that the warning buzzer on the contact altimeter simply warned the pilot that it was time to release the bombs. That is, it was up to the pilot to release the bombs - it was not automatic.

So, who / what is correct in all of this?