First pool session last night(PADI Open Water). The swim wasn't pretty but I did it,and the float/tread water was easier than I thought. There were a couple of problems with my initial attempts at mask clearing that had me wanting to bolt for the surface, but I kept it together. Regulator removal and clearing were much easier than I had expected. I need a little more weight and a larger mask. Oatmeal Stout at the local brew pub helps with that dry feeling after breathing bottled air(which lasts a lot longer than in a Scott pack!). All in all, a very successful evening.