I'm talking about old rims with "perforated" braking surfaces, from the early 70s or maybe even earlier. These came off an Atala, and had some inner tubes that were thicker than most tires, LOL, and say Schwinn puncture resistant, and had Wolber tires, that are cracking from age (BTW, these are 27" x 1 1/4") . But the wheels had Maillard Normandy high flange hubs, in good condition once cleaned & repacked, and the rear has a Regina freewheel, that's heavy but worth saving. But anyways, what's the story on this type of rim? I understand the perforations are supposed to help braking, but what about the quality? Are they all cheap junk, or are some actually pretty decent? Once I got all that rubber off, & made allowances for that heavy Regina, the wheel doesn't seem "too" heavy. (?) So educate me, if you know, please? Thanks.