throttle return springs for IDF's, what works? Options

[machina]

I tried this dual coaxial compression spring setup but it feels like crap and is really hard to push. The carroll smith books like a compression spring because if it breaks, you still have some spring action.

How do you guys rig your throttle return springs on IDF's?

Also, does it help to lube the inside jacket of the throttle cable?

thanks,
dr

[ChrisFoley]

I like to have the coil springs on the IDF throttle shafts, and a long, small wire gauge, pull spring attached to the same arm the cable is on.
It may take a few tries to get the correct tension so the pressure at your foot is reasonable.

I don't like the springs that attach to the filter plates, btdt.
I don't think the compression spring will work out; it will cause too much slack on the cable.