I have a 2016 Z06 manual. When in rev-matching mode, I believe there should be "one blip" when downshifting. Mine, however, many times will blip twice, especially at lower RPM, around 2000 RPM. The "blip--blip" just sounds weird, even my friends noticed. Higher RPM around 4000, it mostly blips properly. Sometimes it blips when you take it out of gear putting it in neutral to coast for a few seconds, then blips again when put in gear. Why would it blip sometimes when going to neutral before engaging in lower gear? Dealerships that I talked to don't seem to have a clue, even one of the largest dealers in Columbus, Ohio area.I even found Tadge Jeuchter on LinkedIn asking for guidance to someone knowledgeable! Has anyone experienced a similar issue on any manual C7? I took the Ron Fellows Driving School, and neither of two Z's did that at all. Why mine? Help! Thx, Joe