Joe's bike, (ex DS) has cast lugs, at least at the seat lug.

Some Lippy built Masis had the stamped, some the cast, I think that was part of the problem for him. The time involvement was not consistent. But the pay was the same. Never got to ask about if the cast lug variations or lack of them were a factor.

If you think abut it, the lower head lug will differ the most except for the extreme sizes, where many might change. The top tube gets longer, the fork length the same, the head angle the same (or very close), the lower lug must adjust to fit the intersection.

Brian Baylis suggested the Master frames that Faliero made or brought were wrong in some sizes, at least to Mario's thinking and were not used under his supervision. Eisentraut was scratching his head on those when he came to measure them, if I remember correctly Brian advised Albert that they were not used in some cases. The guy who had the knowledge was long out the door. No ISO 9000 standards there.