Well I finally got there.
Many boards, many surf's later, many hours watching FB marketplace and Gumtree, many videos watched and designs reviewed, many boards bought repaired and sold.
I finally had enough cash squirreled away, then opportunity popped up via FB marketplace.
For sale locally a 7'0 x 20 5/8 x 3" triple stringer Joel Fitzgerald Cosmic Twin. It had been ridden twice or three times so as new condition, but was not this guy's groove.
Deal done, didn't even quibble about price, avoided the months long build wait and saved a good handfull of dollars including freight.
Dream come true, or so I thought.
Got her home and began the usual drooling, cleaning, rewaxing, fins, leash etc.
Then noticed something odd, standing next to the board there was no way it was 7'0 unless I had grown a lot.
Pulled the tape out and measured her at 6'8.5"
What the hell? Blank build marked as a 7'0, prior owner bought her as a 7'0 and took it on face value to be right. But she's nearly 4" shy of advertised?
That being that I took her for a surf anyway.
Mixed results. It surf's phenomenally, seriously even with needing the fin selection tweaked it lit up on every decent wave I caught. I would say at 6'8 a bit skatier than what I was looking for in a 7'0, but very responsive and orderly or complaint.
Down side, too short. Affected my paddle in and wave selection significantly. Been riding the Christenson 7'6" Twin Tracker so I guess my expectation was that a 7'0 cosmic twin would have the same paddle power. It likely would, but a 6'8 does not. Still a good paddler comparatively and I got waves that shorties couldn't, but not what I expected.
Upside, I could duck dive way easier.
So ride was brilliant, responsive, great flow, easier in the pocket, awesome rail hold, yet pivot on a dime whilst still driving hard.
Paddle will need to adjust to.
Long story short, if you are on the fence about a midlength twin give the Fitz Cosmic Twin some serious consideration.
But also double check the dimensions once you get the board.