I also want to bring back tot he forefront a little aspect talked about in the review that I 100% guarantee was glossed over.
How they sole when sat at address.
That has been a long time knock of mine on the Spider's when I put mine at address with a light grip they always want to move closed, in fact most high moi mallets have been this way over time. After getting the Ten in hand I immediately sat it address to see what it did, and it stayed square with no manipulation.
Now, I don't think its as big of a thing as Odyssey does to adjust to sit a putter square, but, this does remove a potential variable, and variables are what kill consistent putting.
Stellar stuff, James! After a great writeup, this observation may be even more meaningful to hackers like me. Unfortunately for me, James' observations usually compel me to "just try it" which usually confirms his observations, which usually leads to a hit on my savings. Seriously, THP is the best place to get this kind of information, if you can even find it elsewhere.