Keeping this updated for anyone reading :D Used the 3m tape on the sensor last night, made me feel a little more secure about it not falling off. Today is a shower day and Karate, so we'll see how it holds up. Dexcom was great about the bad sensor and said the replacement will be here by Monday (which isn't bad seeing it's the Holiday's).
2nd day on this sensor, not a single data drop off for over 24 hours. I did get a false low reading at around 3am. My meter said I was at 69 (I have 70 as the warning level) and I was actually at 90 per a stick test. It's odd though, as looking at the past 2 nights I've been hitting a low at the same time.
Breakfast time it was spot on, 1 point off from a stick test on my Freestyle lite. I'll update again after I give it a workout and a shower.