cutting off ALL the roots..

Well like it sais, im going to take one of my plants thats in a 2 gallon dwc and cut all the roots off. Its 7 inches tall and 8 inches wide and the roots are nice and thick. What if cut the main stem like it was a clone and put it in the cloner.. Reaon why is becasue if you can take big clones, why cant you just cut your main stem and act like its a clone.. For more root space for flowering.. What do yall think? Im just going to do it to one, its on it 4th node

Go for it, but all you are really doing is setting back your harvest date by at least 2 weeks. Wouldn't it suck if you decapitated a perfectly healthy plant only to have it not root? My advice; leave it alone and let it grow, but that's just my $0.02

ive tried a main cola clone...it died

i think the prob with mine is it was too big. if i had made it a few inches smaller it might have made it.