To me it's a toss-up. Sure the vast majority require no adjustment the first time but my '07 was in the minority. I had 2 intakes that were right at the minimum and 2 others about .1mm from minimum. Subsequent checks were fine. I wouldn't obsess about it but I'd definitely check it before 35K miles or so.There was a guy on one of these forums who decided to do his own valve check. He posted, received a lot of valve-uable (see what I did there?) advice and went at it. You could sense the terror in his next post asking how to retrieve a shim he had dropped into the engine! Point is if it is not ticking (valves too loose) or if it is short on power (valves too tight), leave it alone. Just my 2 cents. Jevers