I am also one of "those guys" who installs as many of the bolts as possible, usually 13 or 14 per side with CJ heads. I have always found that new header gaskets take several tightening sessions , as the gaskets compress for a period of time, so the bolts need to be retightened periodically as the gaskets take a set. Usually it take 3,4, or 5 times until the gaskets stop compressing, and from that point on, the bolts stay tight. If you install the locking tab style header bolts, the bolts won`t technically back out, but as the gaskets compress after a while, you can still have blown gaskets if you do not snug the bolts down as the gaskets compress. I have always used regular header bolts, and have found that if you keep tightening occasionally until the gaskets stop compressing , the normal bolts tend to stay tight. On my old 74 F350, I had the same headers and gaskets on for over 14 years with no issues using this method, and they were only 2 bolt per port heads. Although a specific bolt tightening sequence may be a good idea with cast iron exhaust manifolds, I can`t see it be much of a concern with steel tube headers. I always snug all the bolts up in a couple of steps, but still go over all the bolts after the first few driving heat cycles.