IC - F10 is a perfectly normal selection and is particularly useful if making an approach to circle where you don't want to drag the gear down the slope and around the pattern.
HOWEVER if your CA's are not 'easy' with it there is one obvious solution and several other more involved ones..
I once flew with a CA (who was ex 727) and he alone liked to use F2. When I queried the manoeuvre margins etc with training I was told to use the F1 figures if CA Blogs insisted on using it (and they would have a 'quiet' word
).