Its really interesting seeing different tracks and how different creators (I'm assuming here) as well as teams create different tracks.
I like the MxGR track more myself as it's a bit more spread out which helps me get my double in's cleaner (I also think this gives more options for lines as you can double in fairly easily and still build into bigger lines and not just triple in like the Rf tracks seems to be made for) and has more space coming into and out of corners. The Rf track seems like they space it out to utilize all of the straight space (A good example is where they placed the three whoops under the bridge, they literally run right into the corner which is interesting). It's pretty tight but is more technical!
Curious what you dudes/gals think!

-Jake