C-Record hubs were available in road and track versions and both were available in large and small flange versions. The C-record large flange hubs are extremely expensive today as they were almost never used back in the day. Indeed, they cost at least 10% more than the small flange variant and tehre was absolutely no advantage to them apart from aesthetics. In 1988 when I was building up a bike I needed to special order a set for my bike even though the shop I worked at had perhaps 20 sets of small flange hubs in stock. That was the same for all shops. Today, people who use vintage parts do not select them for technical merits but rather either for aesthetics or for economical reasons.