[TowerTalk] Coax radius

[Mike]

I'm planning on using Buryflex coax to wind common mode chokes using 
type 31 ferrites for my 80/160M slopers. I'll be able to get 5 turns 
thru 2 stacks  of 4 each ferrites. A sort of oval roll of coax with 4 
ferrites on each "straight" side.

The Davis website lists 2"min as the bending radius. What's the smallest 
practical coil to make in hopes of mitigating conductor migration?

73, Mike NF4L