Years ago, Eddie gave me the original Isobar to fly (he had pretty much worn it out and was moving on). I refurbed it and put my RAM 750F in it. I was horrified to see that he had been flying it for years with dopey old Futaba 148s (non ball bearing crappo servos) on ailerons. As Eddie epoxies all of his servos in, I decided I would take a chance and try flying it as is. I flew it that way for many many flights and then I got one of the first RAM 1000s. This was before they made the changes to improve bearing life and detune the engine. It had, by far, the most power of any engine I have flown. It was balls to the wall in every way. That first flight, on the first full throttle pass, the canopy blew off cause the foam and fiberglass failed where the hatch latch was. That's how much power it had. I continued to fly that for a long time with those dopey 148s on ailerons. I am not saying that we should ignore thet lates greatest digital servos (all of my Multiplex digitals are performing perfect), but there is a definite tendency in the jet community to use the most expensive regardless of whether it is warranted or not. Its just a "mine's better than yours" playground sort of thing.