Purposely stunting growth

Whats the best way to keep a plant (a fairly resilient clone) as small as possible (with minimum stress) for as long as possible, to sustain it until next outdoor season, with as few cloning generations as possible (ideally none)?
I'm familiar with topping/FIM/LST, but these alone eventually aren't sufficient without extreme stress from too many cuts at one time..
I have ultimate control over temperature from ~55° upwards..
I can reduce CO2 to virtually non existant levels..
I have every standard lighting option available.. (HPS, MH, enhanced MH, CFLs, and tube fluoros)..
And I'm sure I can find a way to implement any worthwhile suggestion.. Just hoping there is already a well understood science to this so I don't have to keep more than one for backup..

use floro tubes for vegging. shop lights. keep them right on top of the plants so they don't stretch. they will grow slow but they will get nice and stout.

why not tie them down?

I will tie them down, and top them, but that only goes so far.. I can't really deal with a bush either.. As I see it, I can handle a plant with perhaps 10-15 clone-able sites.. Once keeping it that small causes too enough stress to fear hermaphrodism, I'm going to need to replace it with a litt'lun..
I've also heard that clones can be kept in a fridge unrooted for fair amount of time, so I'll try that and report back eventually..
The plant is definately a sativa/indica cross.. Probably 60-70% sativa, but thats all a can hazard to guess with what I've seen of these in action.. What temps, moisture and nutes should I be focusing towards for that happy medium between thriving, and dead?

You just busted my balls on the advanced threads on a post on which would have been a p3erfect answer to what you are asking. But you are such a dumb fuck you did not notice.

You are playing with us, right? You are really not this much of an idiot.......????