Originally Posted by
Rob_DOHC
Lol, hairly muff.. Your mechanical solution has been implemented by people in the past and from what I could find out worked well enough... Give it a go an see

Well that sounds pretty promising then mate, lets hope that its a case of "great minds think alike" and not "fools seldom differ" then if others have come up with the same idea as I have to solve the problem.
I'll have to get googling for some decent examples when I have more free time