pafflyer23, nice commentary. As far as the covering is concerned, anytime you cover comething half way around the world you should expect some sagging. After all, the planes travel through many different climates and humidities. It is an excelent covering job in the first place considering they over worked and underpaid the poor fella that did the work.
I am running S-148's on everything with a 6 volt sub-C pack. 4 on ailerons and 1 on elevator and rudder. Since futaba rates their servo's at 6volts for 44 in. oz. of power they are up to handling the load.
Also am running a new but old style G-23.