Yes, 7th is a Riblet. I absolutely love old doubles, it's what I think of when I think about a ski lift. HSQs are such a sterile experience you really have to try to eat shit loading up, but one wrong move on a fixed double moving at high speed and its a great few minutes of entertainment and excitement for even the most experienced.
I can honestly say being a lifty at a tiny mom & pop ice bump back in the 90s was the most enjoyable job I've ever had.