My bombing runs are typically like this..
Fuel/field strats - 15k, B17, 16 250lbers (pickle leftover bombs on runway spawn in case anyone ups..

Hangars - 15k Lancs, 18 500lbers
Enemy strats deep within enemy territory - B17s, 20-25k, 16 250lbers
CV killin - 14k Ju88s with a friend or two, no formation, 4 500kg bombs only.. come up from straight behind the CV, look down till i see the CV through the very bottom-left floor panel. Then I'll cut throttle and extend dive flaps, diving STRAIGHT down on a position a bit in front of CV, keep diving to 8,500 feet before pickling bombs and pulling out to hopefully 7k above the CV, and my buddies will follow in a straight line behind me, each performing the same manuever.. with luck (and no 5 inch guns manned) we'll form up to give eachother gun cover and head home. (well, that's the idea, anyway

)
That's how i bomb. I'll occasionally take some bostons to pork ord, but i've never really found much of a use for Ki67s.
Also.. I pickle my bombs individually, all my bombers are set for Salvo 1, Delay 0.05. If you hit the bomb realease button too quickly, it'll cancel out the command and NONE will drop. If i'm in a area with heavy enemy presence, i'll Salvo and carpet bomb so i can jump back into the guns ASAP.