Looks like I will have a project gun. These (un)kind words from Gun Tests Magazine, who gave the SA-9 a "Don't Buy" rating:
"Standard Arms of Nevada SA9
It is hard to get a good look at a gun that gives you trouble. We did manage to render accuracy and chronograph data (barely) despite many failures to feed. It is easy to see that this is a very close copy, a clone in fact, of the Kel-Tec product. The mags are also very similar, but the Kel-Tec magazines are branded with the Mec-Gar logo. We tried using the Kel-Tec–supplied Mec-Gar magazine, but it did not seem to help. Mec-Gar also supplies the magazine for the Taurus PT111, but the lockup is different, preventing interchanging with the P11 or SA9. Both the Kel-Tec and Taurus pistols fed flawlessly throughout our week-long test, so we would be hard pressed to blame the failure to feed on magazines...
...But the SA9 couldn’t match the P11’s reliability, and for us, that was enough to pass on the gun. "