You might tell them to put that "tip" in their literature, where the new owner can find it! I believe that the German made "Colt" .22 AR may suffer from German "over engineering" - tight is nice, and accurate, but doesn't run nearly as well when it gets dirty. I have found the Hoppe's Elite (Mpro7) new "green" CLP to be the cat's meow for real ARs - run'em wet! (May be true for .22s, too.)
Standard Velocity is quite a bit weaker than HV. My girl recently bought a S&W 15-22, and we are both looking forward to trying it out. I like the Colt's aluminum reciever and "feel" better, but they did not have any extra magazines available - and they had plenty in stock for the S&W, so that got the nod. CC
Colt, Glock and Remington factory trained LE Armorer
LE Trained Firearms Instructor