Having narry a clue to start with, I'll go the psychological route. Since F, I, and N seem to share the idea based on g/vowel/cons/g/o, I’ll throw them aside with all their desperate detail as fin-ished (though prolly already fatally wrong!) In similar mode, J is too clearly modelled on g/u/*/*/o, so I think that one stinks. I can’t imagine an oblong swab for a round cannon, so I’ll declare that one a bore. C is tempting. But then K seems to be too similar a process for co-incidence, so I’ll assume the fertile minds here are responsible for those two; and H, E, L and M are just too fishy to be left on deck :) B is internally consistent: just too fanciful! O is very tempting; hmmm, but I think I detect a tsuwm or Faldage at work, trying to lure me to the succinct decoy… So that leaves the Scots pair of songsters: eeny, meenie, minie, mo…. Give me a G for an edumificated guess!
