Get the X2. Look on Amazon to find a deal where it comes with one wireless controller. Also Camping World runs specials on them.
I have an X2 and love it.
Why ??
1. It can get either the western arc or the eastern arc satellites, whichever are more visible. Tailgater only gets western arc.
2. It has 2 cable outlets so you can have 2 TVs connected. Can watch 2 different programs as long as they are on the same sat. Tailgater only has one outlet.
3. A little bigger sat dish. Can make a difference in marginal conditions. Tailgater dish is one inch smaller.
Just aim it in the right direction and sit back.
* Buy the (expensive) Winegard tripod that fits it. The X2 can only take 2 inches of water before damage occurs. The tripod has already saved mine once from being flooded.
Suggestion if you have an Iphone. Get the 'Dish for my RV satellite finder' app. Cost is $5. It uses the camera to project 2 sets of 3 red balls (1 set is the eastern arc and 1 set is the western arc) up into the sky to show you where the satellites are. Then just set the X2 so it can clearly see them. Very cool app.
I would not add a sat dish receiver to the top of your rig. What happens when you get set up and find out a tree is blocking the receiver. I'd rather have mine on a 50 ft cord that I can move around.
And . . . I also bought 35 ft of chain and two padlocks so I could lock the X2 to my 5th wheel. Sad but . . .
Did I mention you should get the X2 ????
Tim