I believe you are right, Tom, ANY extra part is a potential failure and the consequences of that failure must be considered. BUT my experience of Mtachboxes has been total success and gave made the rigging of the complex wing (two LE flaps and One TE flap) on the Mig 29 simplicity itself instead of the previous nightmare !. Any comments Doug Cronkite ?

Problem with failures in models is that we are ALWAYS very close to the ground giving very little time to analyse and correct a problem, before the, almost inevitable, impact !

Of course the forthcoming 16 channle JR radio will solve the problem at a stroke !*

Regards,

David Gladwin.

* I wish, but wishes have beeen known to come true !