I switched onto a Vanquish disc from a V8 on Saturday. I was 09:04 and 14:02 faster over the same 100 mile course compared to the 2 weeks before. Very similar wind.

I have a Parlee TTiR with Hed Ardennes wheels rolling on 700x26 Specialized Turbos as well as Hed Vanquish 4/8's on 700x28 Specialized Turbos.
I was curious to see how much "faster" the deeper profile Vanquishes are.
I have a 20 minute FTP route I do:
https://www.strava.com/segments/26066512

Results of 9 attempts are below:
Date Time Wheelset 15-Oct 19:35 Ardennes 16-Oct 19:21 Vanquish 4/8 28-Nov 20:35 Ardennes 19-Dec 20:07 Ardennes 19-Dec 20:43 Ardennes 1-Jan 20:04 Ardennes 17-Jan 21:04 Ardennes 14-Mar 19:51 Ardennes 18-Apr 18:40 Vanquish 4/8

The results are impressive. The Vanquishes average 6.3% faster (19:00 vs 20:17) over 7.9 miles.
Conceptually, this would save over 51 seconds on an Oly Tri course.

Yeah, yeah there are a ton of variables, but interesting none the less.