Perhaps this thread has gone cold but since I just found it and have BSFL experience I thought I would chime in. I'm going into my third year rearing BSFL and this year I've added quail to our lil farm but have not yet fed any to my quail. I'm currently supplementing the quail with commercial dry mealworms. BSFL are very easy and there is tons of data on the internet on techniques. Having spent many $$$ on different breeders I'm convinced that the tavus boat is the superior design. I have one and am building a second for this year. The second generation Biopod is not bad but it's very expensive. Various bucket breeders are out there but the only one I've found even reasonable, in build time and productivity, is the tilted/slanted design.
My excess was frozen for feeding over the winter but that is a pain as the residual moisture causes them to all stick together and a 1 lb coffee can of frozen/lumped together larva are not easy to break apart and feed chickens. My research reveals that there are some out there that are dehydrating the excess and so I'm building a solar dehydrator for that purpose.
The leachate (the liquid residue they produce) is a very potent fertilizer. Initially I read that it should be diluted 100:1 before application but later read of a commercial facility in Oregon that obtains leachate (method not revealed) and dilutes 50:1 and sells it as ready to apply liquid fertilizer. Our experience indicates that it is a good fertilizer and there is little difference in either dilution ratios but we've never used it full strength.
There is a commercial facility in Ohio that grows BSFL dehydrates them, grinds and mixes with ?and presses out a pellet feed for fish, birds, and other livestock.
So, their easy to rear, nutritious, and chickens (and I hope quail too) love em. Go for it.