Bone stretch - limit maximum

Here is my set up. I like the way things work right now when moving the IK controller. The leg and foot do as they should. But, if i want to lift him off the ground (with say the hips which is the next bone up the parent chain. The bone set to stretch just does that, indefinitely. I would like to set the stretch to some limit. So ultimately if i grab the hips and lift him up the feet will follow when the stretch reaches its max limit. I played around with it but I can’t seem to get this to happen. Any help would be amazing, thanks.