Perhaps Tom wants to verify some things for himself instead of just blindly following others. Otherwise how he is to know whose advice is good and whose is rubbish? Bee inspectors obviously can't be trusted blindly so how is a new beekeeper supposed to know who to believe??
Because I told him so. Not good enough? JBM’s advice does not need ‘verifying’.
Re brooding up to outer walls, that's not just a prerogative of poly hive owners. My bees often brood up to the outer wall on a south facing cedar box, warm way. Believe me. Those that don't, use that first frame for pollen.
I like it that you do specify only the warmer wall! Poly can be brood from wall to wall.
I've never seen the first frame ignored but then I don't have solid floors (and am not really interested in trying that experiment).
Not sure what solid floors have to do with it. It’s a simple fact that poly is a better insulator than 19mm of timber - and my polys are likely twice that thickness, so the insulation is far superior to that of a typical timber hive.