I too, am a devotee of using flies with spinning gear. I love the slow fall, (sink rate) of a wet fly presentation made with a fly rod, but don't usually have room for a backcast.

I've been experimenting with popular wet fly patterns emulated on 1/80oz or 1/100oz jigheads with foam bodies. The weight allows for a decent cast without the need for a casting float, while the foam bodies slow the sink rate through the water column. Still looking for that killer combo for big BG's, but I am seeing very promising results.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.