Using Frontal to and Independent Head for new limb IK

Limb IK video by Okay Samurai 

Love the new Limb IK and the explanation video above.

When I add a Left Quarter however I run into bugs that look like artwork out of place issues, however, after diagnosing my rig works great without the leftquarter/swap set.

Given the tip of making the head independent and add a frontal with a Face Dragger, should I not be doing the same for Left Quarter and having both in a swapset?

Thanks in advance,

Chris