I guess this thread is aging a bit, but I just grabbed a second Lynskey frame on ebay so I'll have a road and a gravel bike.
One important thing to consider, especially when comparing different Lynskeys is that the frame sizes don't always line up... meaning that if you think you are an 'M' then you may not be an 'M' for all of their frames.
For example, I'm typically about a 54cm frame and bought the medium R250 (54cm top tube). Built it up, love it, beautiful. I started looking for something with similar geometry, but with more clearance so I could build up a gravel bike. There were some medium versions of both the Cooper and Urbano on ebay, but on closer inspection, I noticed that the SMALL versions of those frames had almost the exact same geometry aside from the head tube angle... In fact, the cooper small has a longer reach than the medium R250...
Code:
measurement R250 Med Cooper Small
seat tube 50 50.54
top tube 54.1 54
head tube angle 72.5 71.8
seat tube angle 73.5 73.8
bottom bracket drop 7 6.56
chain stay length 415 435
head tube length 15.7 12.4
rake 45 45
standover height 77 77.5
wheelbase 985.4 1017.7
bb height 28.3
front center 580.5 591.3
stack 556.2 546.4
reach 375.8 380.2