So I am still early in the game maybe 15%ish or so. Later in the game are there better enimies to grind than the silver slimes? I kinda hope so b/c grinding them is sort of boring. --- If practice makes perfect and nobody is perfect why practice?
Of course, they're just the most efficent. Really, you could level on the local monsters while running a dungeon to the next boss and be ok. You don't really gotta over-level this game, unless you want too, in which case slimes are your friend.