I think I like the entire amalgamated product of MUSTY MUSKETEERS better than FIDDLERS THREE. This short improves by (a) removing the meaningless and long laughing scene, (b) removing the nursery rhymes, (c) changing the ending, and (d) adding in a Stooge-style sword fight. That said, the product isn't that great still overall. I think though that this is a worthy entry in the Stooge canon as they did everything they should have done: seamlessly (almost) integrate the new scenes around the old ones in a way that forms a cohesive short. This isn't a disaster like SCHEMING SCHEMERS or BEER BARREL POLECATS.
The new scenes are well done, and I really like how the girls say, "Zooks! That's real George!"
It is terribly obvious that Vernon Dent is extremely ill in this short. His face is pale and thinned, although his voice is OK. It is painful to watch such actors age, as Heinie Conklin isn't looking too great either here, although he would survive to be one of the few actors to work with all three of the Stooge short teams.
All in all, if this was a sandwich and DISORDER IN THE COURT is a Philly cheesesteak, then this is a turkey and cheese. You might not want it on your own, but if a friend offers it to you you're going to take it anyhow.
I'd say 7/10 for this too.