Second trip in SuperNova 6400

[galena]

I reported our feedback after our first trip and have now scheduled our second trip for over a week starting the 26th. I have to take to the dealer on Mon the 15th to address items so far identified, nothing really large. We are still very pleased with the 6400 over our 2006 Seneca.
I have a few questions for other owners:
1) I finally got to the right person to give me instructions for turning on and off the electric water heater. Does the electric provide the hot water needed or do you also use the prophane?
2) When we take in Mon we are not sure what to do with the table with one leg. The options are to leave as is and have a lot of movement OR replace with two legs. I want to go to two legs but not sure what the rug will look like when they move the current leg. What has everyone done?
3) It appears the MPG is a instant reading not an overage. Is this correct and if so can one change to an average?
Thanks