My handwriting has remained basically consistent, but it has deteriorated a tad. My handwriting is an eclectic amalgamation of cursive and blocky print, with a generous smattering of swoops. I think handwriting analysts call them kickstands, when they fall to the low side. I also rake my script backwards, which shows streamlining, a go-with-the-flow nature.
I think I'm on my fourth or fifth edition of signature, which is constantly in evolution. It amuses me to look back on very old documents and see a previous incarnation of signature.
I don't really put much faith in the psychoanalysis of a persons handwriting, getting down to a micro scale. But on the larger picture, you can get a read on the basic person. If they're smart or stupid, or hurried or mellow.
Another thing that interests me is, girls can write so vastly different than boys. A fourteen year old boy can never write in that bursting sunshine that is teenaged girls handwriting. Never. Never never never. Never in a million years, never.
Heres my tip of the day. Get writing samples from a hundred hot 16 year old girls. Overlay the individual letters, and boil it down to its averages. Like they did with the perfect face. Make that font, and sell it for millions. Call it Prettygirl.