Most folks try to feed at the same time everyday for a few weeks to get them started on the feed. LMB may not feed at all, but the BG should pick it up eventually. IIRC, my feed trained hatchery hybrid bluegill took 3 weeks to start feeding. I fed within the same hour every evening by hand and only threw a small handful in per day until they caught on...then only fed what they would clean up in 20-30 minutes. Some folks will say only feed what the will clean up in 10 minutes, but my fish have never fed very fast. I used to take 30 minutes to finish off 4 handfuls of feed (not thrown all at once either).

Adding feed trained fish should help, but would not be necessary. Once just one of the BG start making a splash, the others will fall in pretty fast.

Fish on!,
Noel