I do run 10 frame deep and that is a pretty good thought. Maybe I'll use it for the outside frames of new hives for my nucs that are getting close to going into the deep.
As far as putting frames out to be cleaned... do you uncap them or leave them capped? I will be putting some medium frames out later in the year - they are in the freezer now and were being saved for emergency feed.
Perfect, those nucs need all the food and drawn comb they can get to build up quickly. You don't want to surround them with all capped honey because they've got nowhere to expand to but on the outer edges they'll consume the honey to draw comb on undrawn frames and raise brood. I wouldn't mess with uncapping, let them open the cells when they need it.