I have the Big Foot System om My Vegas 27.7.
I use manual set up. I know exactly were I want my unit set up at. A very small amount lower on the drivers side and a very small amount lower in the front. That allows the A/C to drain off opposite of my awning and my blackwater tank drains forward and then down and around to the drivers side. It take all of one - two minutes to setup.
My unit has 10" pad, but I added the snap pads. Not sure it is worth it, but I have them.
BigFoot is GREAT!!!!
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