I find the job fun at 70. It's not overly complex but you can tell the people who don't take it's nuances seriously apart from the people who don't.
For instance, Verflare gives 100% chance for verfire ready when black magic is lower than white, but its useless if you already have verfire proved. Therefore you should verholy for the 30% base chance for verstone ready, and verfire and thunder balance you out. And of course make sure that 21 points from your verfinisher doesn't throw you into the black or white. Mastering this concept is the key to double verfinisher under one embolden.