I think this its a great idea. I'll add a couple of thoughts.
It may make no difference but I would probably abstain from F1s that are feed trained. My preference would be F1s that have depended on fish forage and that are skilled predators. So by fall you could grow F1s exceeding 1.5 lbs provided they are stocked at an appropriate weight.
I recall that you can completely drain the forage pond which is great also for this purpose. Consider this progression or improvise to improve. Fill forage pond winter and early spring stock 20 lbs/acre FHM during fill up. Add current year crop F1 fingerlings as soon as available @100 per acre. Early July add 40 pair/acre adult BG. If in October all you had left were primarily the Adult BG and F1 LMB ... it would be ideal as the LMB would have efficiently cropped the minnows and BG YOY production.
The next step is to remove the F1 female LMB. A broom straw from a plastic broom is the best method for sexing the LMB. I've attached a link below that describes the method. Be sure to fin clip to be sure the F1s are not later culled accidentally.
https://www.researchgate.net/publication...f27df8/download 
