The one change I would put for Shoha is that the dmg scaling is reversed. Aka make the first tick a 200 potency one, and scaling it less with each tick to 500 at the 5th one. This makes it favorable to use still (since if you time it right, you can get a single tick of meditate off during regular combat in between GCD's) and make it have that super 500 potency 'oomph' factor in long boss fights with breaks in them.