knee to see what happens. If you do find a source for the deep chin spoiler in NZ, let me know, will be keen to get hold of one when i take on an SD1 next year.
In terms of the gearbox, Ramon has some damn good info on leaks and how to flush the manual boxes for maximum performance. http://www.vintagemodelairplane.com/pages/Downloads/Rover_Tasters/Gearbox01.html