Though I would keep in the Force Choke instead of the snoring Gamorrean Guards, seems a bit to childish for me.
I wholeheartedly understand your concern š but Iām confident it can be done in a way to not look childish. An alternative idea (or in addition to, if the snoring works also) is to edit Lukeās lips so that he now whispers āSleepā when he applies the Force on the first guard. The whisper is, again, mainly so the audience knows exactly what is happening - heās not harming/killing them, which is important to know. On top of the main reason I stated before about it, having this nonviolent Force ability would coincide nicely with Lukeās Force Mind Trick later on, after all, in addition to broadening the spectrum of Force abilities as this will be the first time weād see this particular ability (I know, Qui-Gon applies it to Jar Jar, but that was in the PT and who knows if thatāll be kept in for Revisited š ). And, Ady has proven again he is a genius when it comes to editing mouth movements. A human actorās lips is a different beast compared to editing a puppetās, I get that, but it can be done convincingly well enough, I believe, as he would hardly have to move Lukeās lips anyway (just the āpā part of āsleepā).
Just like Bingowings, I do approve of the āsignatureā Force abilities since it does work very well from a narrative standpoint (though, Iām sure the Emperor could pretty much do all abilities that weāve seen, and then some, if he wanted or had reason to). And the reason the Emperor should indeed be the only person seen using the Force lightning is because, otherwise, it would greatly cheapen his impact to the audience later when Luke stands up to him; seeing the Emperor actually do something we havenāt seen before is of great benefit to his character and how we the audience perceive how powerful he is, so this is an extremely important first reveal to keep intact. If the Emperor still does have moments to use the Force at any time in the PT:R, he should never use Lightning there either (it should be something else or new, but within reason of course, so by the time we do get to ROTJ, the audience will be like, āOh sh!t, he can do that too?!ā). š