Masi California was pretty consistent as far as what went into the GC's decal-wise, fork-crown-wise, and lug-wise. That's one reason why the variations are notable in many cases. Masi was also fairly consistent as far as geometry - it's one thing that made a GC a GC. According to Dave Moulton, even Dave Tech's GC's had the basic Masi geometry despite Tech's well-documented penchant for very quick-handling bikes, though I don't know this first hand. Also according to Moulton, Masi had a template for the GC that subcontractors were expected to follow, I believe in the form of an exemplar frame. The fork bends done at Carlsbad were consistent as they were done on the same equipment, and Masi was known for its relatively graceful, gradual bend beginning up toward the crown. Lippy's bikes in particular tend to diverge from this model because he didn't have access to either the equipment or the template or both (or the issue didn't concern him). His forks have a pretty noticeable dogleg. They also tend to have Dubois lugs past the point most Masis had IC lugs, which is why a photo of the reverse of the seatlug would be very helpful in the case of Joe's bike.