Milt, I watched many bombs fall away clean with the bombs slowly rotating as they fell.
To minimise the risk of jostle we were limited to a minimum interval of .3 sec IIRC.
There was an incident in 1967 I think. Boscombe managed to drop 10 x 1000lb (probably inert) out of a load of 21. Only problem was the bomb doors were shut at the time.
Despite the weight of bombs, most of which imagine would have been in the middle of the bomb doors, the bomb doors did not open. I also guess the landing was particularly gentle with gentle breaking to avoid the bombs moving forward through the fueslage fuel tank.