Thumper's Dad,
I have plantar fasciitis as well and have not done well with Tevas. They are comfortable, don't give me blisters, etc., but just don't have enough arch support to work for me.
By the way, I had orthotripsy done on my foot and my foot is all better. I had been getting cortisone shots, wearing night splints, etc for years, but nothing ever worked. The orthotripsy made the pain go away entirely after about 12 weeks. If you haven't heard of it, in non-medical terms, it's a machine that give you many (thousands?) of electrical shocks to your foot in a 10 minute or so period. They don't put you under a general anesthetic to do it, but I was out cold and don't remember any of the procedure (sounds like a general to me, but it wasn't). I then had to stay at the surgery center for about 2 hours, then they sent me home. Seems like I was supposed to stay off my feet for a day or so. And I had to wear "sensible shoes" for 12 weeks. Downside: About $5000. But my insurance covered it (and I probably would have found a way to pay that out of pocket to be pain-free anyway). Good luck!