yup.

for propagation purposes, it should produce rooted stems that you can sever and veg much quicker than cuttings simply because the main plant provides support, water and food.

Here is another good place for willow water. Soaking willow branchs in the water you use to keep the proposed root site moist will impart the organic rooting hormone IAA.
I've seen people use bound peat for the rootsite, rockwool is a damn good idea. I imagine coco would work well too.

duhh. Am I gonna get a higher yield doing this into another 3 gall pot in my cab rather than a whole nother plant? I think the max I can grow under my 250w is 3 scrogged anyway. One plant layered left and right or 3 seperate plants?

Three separate will give you a higher yield.
The real advantage pointed out here is the fact that untill you cut the layered roots free from the mother, it is still legally counted as one plant.

This could also be a better way to propagate a hard to clone strain. The Red Rhino that I grow is proving to be almost impossible to clone,taking 4 weeks to grow roots. I think I will try layering a few branches of my bonsai mom to propagate it.

I'd like to hear how that goes Norm62

My Blue Rhino is also a tough one to clone as well; but I find the real trick w/ it is to really be "on" your moist/dry cycles; in other words you can't KEEP it too wet

My Fire Rhinos are the same way (damn Rhinos LoL) however, my Blue Rhino F2s are easy as Pie to clone and they have nice roots within 20 days MAX!

I am gonna set up a cool cloner here as soon as I can that should emulate the manual Wet/Dry schedule I have found to work good (thanks to a good tip from Freeme) and I will break down the construct. of it and it's dynamics at that time; but just remember it's a dance of almost dry IMO

THREv

I'm still not there--soon. My white rhinos are turgid and mostly green. They're recovering from overwatering and they'll be showing new growth again in a week