Topping clones?

No it won't stress them out, as long as they are growing healthily before you top them.

Not if they aren't rooted. If rooted then sure why not? Guys will cut leaves with scissors when prepping them cuz they think it cuts down the rate of transpiration, which lends itself to more energy on forming roots, but it's been debunked. I cut my leaves anyways because it's just what i've gotten used to and it doesn't hurt them anyways.

hmmm have you seen people cutting leaves on clones ? thats not topping buddy and the only reason they do it in my eyes is to save space. dont train clones until they are rooted. like the other growers have stated I mean im sure it is possible. though probably push your rooting times upto over a month or summit stupid like that lol if you want a really big plant from a cutting look into monster cropping this is a teqnique where you take a cutting while a plant is in flower you root that cut and put it back in veg. then when this cut is rooted it will be mutated and grow like crazy i hear anyway. Ive never done it lol

I don't understand the Q? Why top a fresh clone..there's no roots. So no growth until u know its rooted and suited for pottin If they're rooted. Of course do what u want