If you can aim everything well enough to coat the opposition with dumped fuel, and follow up with a precision ignition source, then for ****'s sake why not drop a bomb from the first aircraft anyway?

This discussion, amusing as it is, reminds me of the bollix articles in the comics in WW2 (seen in reprint, I'm not THAT old) about the cunning plan to drop sand in enemy aircraft engines...

Nimrod self defence - try to fly up own a**e, look for thick clouds and thicker enemy pilots, wait until inferior foreign monkey dies of old age...