You're welcome, erle.
Most likely the reason you've never seen a Boattail Superglide is because they weren't a big seller back in the day. A few years back while at some rally, I happened to strike up a conversation with an older gentleman who said he owned a Harley dealership for many years from the late '60s to just a few years ago. During this conversation I told him of always liking the Boattails and he replied that I was one of the very few people who did like it, and then went on to tell me that most of the Superglides he sold the customers would tell him to replace the Boattail with a "normal" fender/seat, and so he said he had many of those Boattail units just sitting around in his storage area for years.
(...and the irony here is that those Boattail seat/fender units now go for big big bucks on the collector market)
