I did live through that conversion. It was annoying as you know what. The actual conversions were UGLY and as far as I can tell they did not apply the standards consistently.
My home track, I actually watched the poor thing slowly get transitioned from first, cinder at 440 yards; To then, literally scrapings in the dirt that “converted” it to meters….for about 2 meets before the cinders, like a shaken etch-A-sketch erased everything.
It had a raised 8-inch concrete rail that presented a problem with moving the track in to shorten it. So they just graded the dang thing and used actual asphalt like, you know, the road, and paved over the rail, skooching it in a few inches for good measure (but without actually measuring it!). It stayed brick-hard like that for years until they finally scraped together the money to put a real surface on it that was less likely to shatter your shins on impact. And then, finally, they had the thing marked. And it’s still long by about a 3 feet.
My college track on the other side of the valley they simply waited until it deteriorated and finally skooched it in. I think that one is accurate. I actually donated money for that resurface. Oh, we used TAPE to go metric before that and had big fights about how to mark it.
We have one true 440-yard track left in my city. Of course, it was in the poor side of town so they had no money to convert it. It was cinder and red clay until about 3 years ago. It was the softest, nicest track in the world. Thankfully, again, because it’s in the poor neighborhood, they used cheap, thin pavement and it retains some of its wonderful soft touch.
Igy, we needed that danged manual 30 years ago! You'd think it was non-existent or written in hieroglyphics considering how poorly the standards were applied.