yeah grinding is awesome in V.
very hard, but very rewarding. it's amazing how many spots i've over looked in my months looking for big airs and precisions and such. when i look for grind specific spots, it's like a whole new map.
i recently discovered one of the biggest gaps to grinds with potentially one of the longest grindable ledges in game.
it's going to take some practice, but it's one of those spots you'd see and go DAMN.
get out there and try it.