3 weeks 12/12 running out of room

Not to mention, you'd have to have the pot level to water it, or the water would just run down one side and not soak most of the soil.

Well when it comes to watering jus put it up right for 5mins then put it back, just an idea?? same idea as lst but your not really stressing the plant by bending it just tilting it, then it will grow towards the light,,

Well yeah, but the water in the soil will still drain to the bottom corner.
Imho tipping the plant over is gonna cause just as much stress as lst done right.
By all means give it a go if your unsure about bending the plant (it's much less scary after the first time) but I think you'll still run out of room eventually.

i had one tipped last year and it grew fine. straightened up on its own so it was a little awkard standing the pot up to water but it worked.

i have some now that i lst'd and they are looking bushy. the main stem has stiffened up and is thicker and stronger now because of the bending.

I've never seen any negative effects from lst, only when people are too rough and end up snapping the stem.
It really makes them bush out because your exposing more of the plant to light. Mary J loves a bit of bondage.