I've been looking at some ISTP profiles.
I guess a lot of the things sound familiar but a lot of things don't, and some of them (okay, a lot of them) probably have to do with my odd fear of injury.
I guess it would be an odd combination. Some stuff that happened when I was about three scared me off of bikes -- I never did learn to ride, even though I tried, which I guess would seem pretty opposite an ISTP. However I have always drawn, knitted, and done all sorts of knotworking things, and got into some woodworking and glassmaking. I guess these are pretty tame, though.
Another thing: I do usually make plans, though often my whims get the better of me and they have a habit of changing. My planning tendencies seem to be, plan a little --> change on a whim, plan some more --> change another thing because it doesn't seem right, plan some more --> tweak again, throw out the plan, come up with something else basic --> etc. I've never seen this described in any MBTI profile, so I don't know what to make of it. However, I've made a habit of making sure important things happen on time, one way or another.
I also think I'm feeling a bit lost right now, because I'm not working on anything in particular...