Try this one:
http://www.barnharts.net/bn/krzrk1m.asp
Again, be really careful if you decide to attempt this stuff - messing up in the root configuration can render the phone useless.
These guys are interested in disabling EVDO because the phone constantly looking for it apparently drains the battery really quickly on the Razrs. But the result should be the same; the phone should stay on the 1x network even where EVDO is available.
I should also mention that I think vCast requires EVDO, so if you use that stuff, you may be losing your access to it. That's no big deal to me, but I guess it might be to some.
Final thought: As I said, I did subscribe to the "MobileWeb" service @ $5 per month. I don't know if it's necessary to connect, but it gives me an excuse for having data minutes show up if Verizon ever does check the details of my usage. It was my understanding - at the time, at least - that they couldn't tell the difference between MobileWeb and DUN use.