What kind and size plane are you working on? Sure, the micro servos will work with a std Rx, although the connectors on some really small servos aren't compatible with a standard size Rx. But, if you're using micro servos because the plane is very small, then the std Rx may take up more space than you can afford or weigh more than you'd want. If your plane is larger and the std Rx fits fine, are the micro servos strong enough (torque) for the application?