I'm with Collieflyer One in regard to limiting climbing angles of bank as exceeding it degrades climb performance.
As for selecting flaps in a turn, I was told off by a highly respected and very experienced examiner whilst doing my 1179 in a Cessna 172 for my initial CPL issue. I was turning final and extending from 20 to 30 deg. He said in the debrief that if the flaps went asymmetric you'd never sort out the roll thus induced and 'don't ever do that again'. I think that he'd had an issue with the electric flaps in Cessnas.
TOO