I've never seen this model. I wonder if it spews all over the place like the A-9's tend to.
I found an A-9 revival model at Goodwill several months ago. After taking it apart and giving it a thorough cleaning, it worked fine the first time, then spewed grounds in all directions the next, which is a common complaint. These grinders are powerful and lightning fast, but the spout assembly seems to be the weak link. I gave mine to my sister, who grinds her own beans each morning. I have a Cuisinart grind & brew so didn't need the KA.
Some months back there was a rare A-10 listed on eBay. The seller stated in his description that to avoid flying grounds, the user should hold the spout cover closed during grinding until the motor begins to slow down, then release. I didn't bother to try that with my A-9, but passed the information along to my sister. I haven't asked her if she has tried it out yet.