Thanks for clarifying. Someone on here in another thread had mentioned you can take an it's with a modified boot image, which made me want to double check here first.I see. When you root (using the stickied method), you're installing a custom boot image. That's exactly what you're doing here as well (just using a different method - a kernel flasher rather than ADB)! That's why you can use the same instructions to flash back - in order to take an OTA, your boot image must be standard!
Glad to know this. I'll give it a try later today!!! Thanks again.