although old my fingers are still quick and nimble.... why invent some tool when you fingers work better?

Not to get on a soapbox, but just because someone makes a tool for something doesn't mean it is needed or makes things more efficient. Are you more proficient using tongs to pick a piece of candy out of a dish, or your fingers?
Personally I find the clips more dangerous to the health of the queen than my fingers. If the queen suddenly moves, you can catch her with one of the sides or even get her in the jaws as it closes. With my fingers, if I miss, there is no harm done, I just go for it again.
For someone like yourself that is comfortable handling bees for BVT, picking up a queen by hand should come quite natural.
With all that said, obviously if someone does not have good dexterity the catchers are the next best option. Do what you feel comfortable with, but does realize that just because you are comfortable with it does not mean it is the most efficient or least dangerous for the queen. And always remember you can practice picking up drones until you become comfortable.
The other thing I don't like about the catchers is what do you do with her once she is caught? Ever try to move her from the catcher into a queen cage? When I have a need to catch a queen, I want to keep her separated for a period of time. By hand I can easily put her into a queen cage.