So if I install this leak, can I update through settings>about phone>update if Motorola releases another update? Or do I have to sbf first?
I would say if Moto releases a fix for the .607 OTA they sent out (and then pulled), it will probably update correctly if your on the unrooted .607 leak as well.
The leak is really the same as the OTA just picked off their systems before verizon sent it out.
Should be no issue as long as it is stock unrooted and not deblurred.