Actually, they are legal here in California. A lot of shippers are no longer sending stuff here because of the internet sales tax law (AB 28). It requires medium/large out of state internet retailers to collect sales tax on items sent to CA.

As far as proficieny with a regular cat goes. I can land about 85% of my shots on a paper plate at 10 yards using paintballs. The distance goes up when I switch to steel or other amunition with a better ballistic coefficient. For those wanting to make an arrow slinger, the Trumark RR2 (heave black bands) pull in the low twenties for your average adult male. Your average "kids" arrow (25 lbs spine / 28" length) will shoot fine out of these. My only caveat is it takes a fair amount of strength to hold onto the pouch without a "bulge" to slip your fingers around.