Was you able to build a franken where its not worth going gen?
Eventually I might to do an all gen parts build.
My two cents, the only good franken base now is a TC, a JF V2, or a Ginault. JF cases other than the V2 are pretty bad. The CGs are stubby, lugs are too low so the SEL fit is wrong (you even see new ones where the bracelet sits higher than the lug), and the rehaut is too shallow so the dial markers don't reflect properly in the crystal edge. The V2 case was fine, since the lugs were thicker and the CGs were the correct shape... but the rehaut was still a little short. The JF V2 is still the best OOTB 16610 if you can find one, but for a franken I'd try to find a TC or spend the $$ on a Ginault.