Would this work?

start a plant from seed or clone. veg until it grows a couple nodes. tie down the bottom 4 branches, sip off the tip, and put it in a cloner. Keep the tip in 24/0 or 18/6, whichever you prefer for vegging, and put the bottom branches you have on 12/12 after they recover from trim.

edit: dupe post

Get root stimulant for sure(it's a gel-like material, coat the cutting's cut in it).

You want a couple nodes on a clone to help it create roots.