Scale Soaring UK

Has anybody had experience with Ripmax quartz wing servos ?? They are digital and made from aluminium
Servo shop is doing them at £24.99
They do look like very similar to the Turinigy mind you, same factory ???
Hitec non digital, metal geared are the same price and plastic

Not used that type but I've used ally turnigy hi torq servos. With good results so far. Ally cases are definitely a good idea as this usually means the whole train is non plastic, I've gone through a good many brands of servos that really aren't tough enough with plastic gears and plastic case fixings (hitec and bluebird to name a couple.)