I'm another skechers fan!!
I have the gorun ride, gorun and gorun 2
The gorun ride and gorun ultra are the same just a different upper. They are the same weight as my fast twitches so are light but not minimal. They have something in them to encourage a forefoot landing. I find them very comfortable and they feel they have more cushioning than my fast twitches even though they are the same weight.
The gorun2 is the newer version of the gorun. I like the gorun 2 better, they feel more normal as the technology which helps you forefoot strike means the shoe is not flat you get a bit of a rocker effect so standing around in them they feel odd to begin with. There are a Few other tweaks which I think makes the gorun2 better.
The gorun are lighter by quite a lot and have given me calf ache getting used to them. I am still trying to bed them in gradually. I am a heel striker so suppose it will take longer. I really love the gorun 2 though they are very comfy and they seem to help me land forefoot more than the gorun ride.
I have done ultras in the gorun ride but so far only short distances with the goruns