I agree. Might as well build muscle memory for your centerfire at the same time that you are having fun plinking with cheap .22 ammo...
If you really want to build "muscle memory" then dry fire your CZ. It will be as or more effective than converting your CZ to a 22.
It doesn't really matter that much what you are shooting, one bad habit will FAR outweigh thousands of rounds of practise. And if you can shoot one gun well, you will be able to shoot almost any gun well.
Sort of like saying that you drive a GM truck, and want to get a small car for the economy. Does that mean you should get a conversion to put a tiny engine in your truck, so that it will make you a better driver of your full powered GM truck?

Or would it be better to get a high performance small car?
=> Get what fits you best in each category.
I have developed fondness and respect for the Ruger, despite having a dozen other mid and high end 22s. The Ruger just keeps on ticking...... Some of the Brownings are also very nice, however I am not familiar with the 22A. As for cleaning a Ruger? You mean you are supposed to clean them?

Never have taken ours apart, and never will. Squirt brake cleaner in, shake it out and oil. Yes we do clean the barrel and chamber.
For "sporting" type shooting, also take a look at the Beretta 87 or 89, they are also very nice and have an action pistol feel to them.
The Tanfoglio Force 22 also looks like a nice relatively inexpensive gun.
One of the BEST features is that the Ruger and Buckmark can make use of the "Ultimate Cliploader". (Canada Ammo, at top of page, has them) You dump a box of 50 22s into it and load 5 mags in seconds.
