hmm now I'm able to bomb - thanks so far. But still, a few wierd things...

In the video I made to watch, I noted that, when opening the bomb doors, a single bomb fell out just due to opening...?!? I mean, what the freeek? Sabotage? Bad ground crew? One does not know...
With the remaining three 250-pounders, I noticed that the bombsight (how I presumably use it) is indeed waaaay off, as was already stated. damnit!
Also, could somebody give me a primer (heh) on fuses on the blenny's bombs? What are the differences and which ones should I use, with what delay? Thanks in advance!