I talked with both dexcom and our supplier today and yesterday about the gen 4. Dexcom said to buy a new transmitter out of pocket will be 799.00. But they are working with all insurance companies right now to get them on board with the fact that the transmitter is only good for 6 months so they expect all will cover it by the time anyone reaches that point. We have to go thru Edgepark for our supplies, so I asked when they would be able to actually ship one to me considering our warranty is up as of October 29th. As soon as they get insurance coverage (which is only a matter of his endo writing a pre auth at this point) then they will be able to ship it out, so for our timing, we should have it no later than the 2nd week of November. I thought of doing the upgrade for the 399.00 before warranty is up and then letting insurance buy one for us as well after warranty, but decided against it.