@WASeaBees hi harry. I recently posted for comments on brood and a half in my case full depth + ideal (instead of WSP). Here is the link Brood and a half
The other thing as well, you may get experienced beekeepers but have lots of hives tell you not to. I say depends on what you want try and go for it. In my case since I am limited to 2 hives, the diff sizes are not issue to cope with whereas those that have lots of hives, I can understand it is probably cheaper and easier to keep all the same sizes.
I have read extensively and made a plan for myself on how to do preemptive swarm prevention, splits, rear queens for my own use only and grow from one to 2 hives with brood and a half. Also seek help here and there are lots of helpful and knowledgeable beekeepers to fill in gaps in my understanding.
Wish you all the best on this new adventure 