But the thing is that a lot of these things are in the video games where you can practically choose what power to use. This is in the movies. You really don't see any other Jedi in the movies that actually uses force choke.
I think that Luke more or less 'stunned' the a Gammoeran. Once he got access from Bib to where Jabba was, I think that Luke would have 'let go' of the Gammorean. I see it as more of a stopping a fight before it started. My two cents...