Gumboot you are right. I doubt that either the BG or LMB will spawn this year. LMB possibly not (likely will but a chance they won't) next year either.

I was making a post but had to stop in the middle so GB posted first. I agree you need some adult BG. The BG and LMB you put in are your long term spawners. You need to be sure the LMB can't eat those BG before the BG spawn. The only way to be sure of that is to put in BG to big for them to eat. Those LMB will be big enough to eat some of the new BG by next spring. Probably the female BG and any slow growth males. That makes it a bigger risk. To avoid that put in some adult BG now (40 to 50 - be sure you get both male and female). They will be to big to be eaten and will also provide you an additional year class of BG this year. That plus a few FH would help.