I use both.
I put the ground chocks down when I first back in so I can disconnect and get the truck out of the way. Then I will level and put the X-chocks on. I could at this point remove the ground chock as X-chock will prevent it from rolling...but I leave the ground chocks in place, because during breakdown I remove the X-chock before I reconnect the truck and I want the camper chocked at all times when its disconnected!
Lazy I guess but I prefer to think of it as "work management"
Beau & Sue
2015 Coachmen Catalina 303RLS
2016 Chevy Silverado LT 2500HD Duramax
The more people I meet, the more I like my dogs!