Thanks for answer David, KC the question was "What about a mix of Digital and Analog servos for control surfaces? I opted not to use all analog for the Tornado project since I have several digital 8411 laying around unused (just not enough for the flaps!!!).

I have a box full of new unopened JR 4131 and JR 8101 analog servos which were considered "High Quality" when they came out and it seems a shame to let them sit for another project (although I may find a winter project to put them in). So I may end up putting them on the flaps after I call the service techs at JR..................