Interesting plan. With the flow-frames if n when they fill n cap you should know on bigger nectar flows okay.
Here in Western Washington … We only have one larger wild black berry flow … But there are other flowers at same time so I call mine all mine “Wildflower” thus far. I’m aware some regions do have great destinctive nectar flows but not where I live.
Great idea n wishing you good luck. I do keep good hive records n a calender of the procession of blooming flowers. That does give info at trying to have a larger brood in the hive at those two major flow harvest.
. I do have one full Flow-hive n adding a 7 frame Flow-super to one of my 10 frame Langstroth hive. I’m hoping this full second year to gain a harvest from that Flow-method of harvest too.