I'm planning on getting the DVX100A soon, after reading up on threads in DVinfo forums, it dosen't seem like there is a huge difference between these and MQ tapes...
I haven't heard anything about Linear Plus, but I wouldn't recommend using them. Has a Panasonic rep confirmed that they're dry lube? Even if they were, I'd stick with the MQ's--cheap insurance.
I've been using Linear Plus ever since I got my DVX.. it's logged 60hrs on it so far.. seems to okay.. (cross my fingers) I hate how all these ppl with their tape paranoia is getting me all paranoid too.