5 or 10, I don't know enough to know. My thought is that 5 frames is very tight and would encourage swarming a lot more. Also, 5 frames is small and tight and easy for the bees to control warmth. On the other hand, it might be too small to have the resources? It really depends on how many hives survive the winter and if I have enough hives to play with. If several hives survive, I'll try both.Good plan.
If my #1 makes it into the next year (fingers crossed) - will try to do the same.
All she will be doing - making swarm QCs and pumping drones.
One BUT - using a 5-frame nuc for QC generator is a little too small I feel.
40 litre unit is good.