Took another Keirsey test today. Interesting how I change slightly on this test - I've gone from an INTP type - rational engineer, strategic thinker, to more of an artistic type - an ESTP. This will be the 4th different type I've tested in the past 8 years. I've found that I change somewhat according to what I'm doing at the time - right now I'm working with a lot of very creative people in a very flexible environment. Guess that's why I change my way of dealing with people - according to the people I'm working with.
However, according to the Jung test, I'm still the same as I always was. I guess that test measures more fundamental things than the Kiersey. On the Jung, I'm still the same as always, INTJ, with almost balanced NT (both VERY strong), and a moderately expressed J.