Most of us will have been taught a 'slow safe cruise' speed at some point, perhaps as a bad weather technique, or perhaps a 'loiter speed' or max endurance speed. Doing my IMCR we did non-precision approaches in a PA28 at 75kt/25deg flaps, for example, which was also the bad-weather circuit speed. I guess that's what I'd use if asked. Having said that we are usually the slow ones everyone else is adjusting for not the other way round...
Tim