Well, in my server, I just made reloadscript skip all files within mobs directory, if you want to do it just with MvPs, I guess you would separate all MvP spawns in a single file.
And.. well, actually I transformed all my mob spawns into a database table, it was a pain not being able to dynamically create natural spawns :v
But nevermind, as I said before, you can close this topic haha, thanks.