@icecoldgin if you have lots of props, then its really up to you how many flights you do with them as a set ,and then change them out ,if you are a commercial flier ,you would cost the prop replacement into your charges ,and you would say in your opps manual ,that you change and discard them at a set interval ,say 50 flights ,for me as a hobby flier i keep inspecting mine and as long as they are not damaged or showing signs of wear then i fly with them no one can really specify a service life for props ,as there are so many variables in play ,just use good judgement and do whats best for you
