Unroot an SLCD Droid Incredible I remember when I first rooted my SLCD Droid Incredible I had to use a special version of ClockworkMod because the original version would "Screen Brick" SLCD Incredibles.

If I were to unroot, are there any precautions I should take? Specifically following these or similar instructions.

Although I'm sure it doesn't make a difference, I used Unrevoked3 to root my phone.
If you need to do s-on, flash that before flashing the RUU. Other than that, just keep in mind that the RUU will wipe your phone.