I know, there'll be crap slung over this one, and I know the ramifications.
Not by me! I've flown many hours without insurance. It wasn't till I had some tangible assets that I thought about liability insurance, just in case I lost it on roll out and clipped someone's Baron. When I was messing with experimentals and classics I didn't bother with hull because I figured I'd fix it myself. I presently carry $25K hull in motion because if anything bad happens I don't have to be bothered.
Geo.