Yes, it works.
RC carbs have more opportunities for air leaks; if you get inconsistent running my first suggestion would be a venturi.
What Dan McEntee said about adjusting the throttle down. Most of the carbs I've used will be at full throttle if you screw the idle adjustment screw in all the way -- I like to use that as a nice hard stop for the throttle.
On the 46LA and Tower 40, you can do a lot of good by tuning the venturi size -- if you try to regulate the plane speed entirely by the needle, you can either end up with slobbery rich runs that turn into screaming runaways half way through, or (if the venturi is too small) runs where you have enough power in the level and the engine fades out in maneuvers.
I adjust my venturi size so that the plane has good pick-up in the maneuvers, but isn't so rich that it wants to run away, or I have to struggle to get the needle set correctly every flight.