Its good you have joined the beekeeping association, It is good to share experience with others.
If the price is right I would not mind having a second FlowHive.
My plan is to have four hives, 1/2 main hives & 3 Nuc and If I don't need Nuc, I shall sell the Nuc's. Having more hives enables me to experiment and try new things.
I placed my hive where they get the morning sun, if the hive warms up the bees are able to forage earlier.
I also double brood my hive allowing them to store enough for the winter, they did not require the Flow Super. I did put it on top allowing them to work on the frames.
One advice I was given by my mentor is have empty hive in case of swarm, that way you can recover a swarm or perform an artificial swarms if required.
I bought a Langstroth Poly Hive and have transferred the bees to Poly-Hive for the winter. Once they have build up next year I shall transfer them back to the FlowHive. This allows me to clean the Hive for the following year.
If you can get a hive in April, you would have a chance to harvest honey next year.