Have flown my Cessna now for quite a few flights.
I believe that using flaps AT ALL is needless and useless and makes you run out of elevator control VERY quickly.
My club has a grass strip that is not what I would consider smooth or long in length at all and I have both taken off and landed without flaps at all and I have been in control the whole time.

TODAY! I did another two flights and the rear motor still seems to be overheating so I will be taking the rear cowling off and fabricating vents directly to the head.
To say that it has enough power is an understatement lol! Half throttle it flies like nothing else even with the rear motor carrying on like a cow on heat.....!?

Also on the second flight I lost BOTH engines as if I had flicked the throttle cut switch ( I assure you I DID NOT!).

Had enough height and was positioned fairly well that I did a landing dead stick x2 engines and zero flap!