Add constraint to a Curve deformer?? Foot plant

I am building a rig with curve deformers for the arms and legs (Rubber Hose style)and I want to plant the feet.
How do I do this?

I want to prevent the feet from sliding similar to IK. I looked at 2 point constraints but they don’t seem to work with curve deformers.
Any and all suggestions would be greatly appreciated.

I actually do this all the time, however try using an Envelope deformer instead of a curve. Make sure to add a knee in there with a third point. Then try your two point constraint system with that.

I have a whole method of being able to turn the constraint on and off with a single drawing swap, but it is pretty complicated and beyond the scope of a forum post. Maybe one day I’ll make a tutorial on it…