David,

I have used Kraft retracts for years. I have found them just about bullet proof. Certainly they are simple to install!

After many years of use I have found that the motors in them get sort of "lazy" - but they are easy enough to replace. I have also found that an occaisional clean and lube of the tracks on the PC board are needed - other than that - wonderful!

I have put a set in the Curare that I am building.

Talking of that I managed to get a full days work on her this week and pretty much finished the wing. Retract bays were cut and lined with balsa, all the little bays and covers for the (4) servos (2 for aileron, 2 for flap) were finished. So just the tail to finish and i'll be ready to sand and cover.

Whew! what a lot of work!