Comparing a heli to a bus, that's funny

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Rainy, others have done the "servo arm" thing too and it's worked for them. You do want to really try to limit your cyclic movements though.
I think all Rotor means is it's easier to learn good habits now than try to break bad habits later.
Changing the arm swing also affects the pitch curve so when you put the linkage back in the normal hole your pitch will be different for a given point on the throttle/collective stick. That may throw you at first as one degree of pitch can mean a 10% increase in lift.
The [link=http://www2.towerhobbies.com/cgi-bin/WTI0001P?&I=LXK184]1/16" wheel collars[/link] Rotor mentioned work really well. This is the route I went. They stabilize the heli by dampening flybar movement and it doesn't affect pitch curves.