Yea, the IV rater is great. I know over the years I got a few pokes from you that ended up being flawless xD.
Powersave is probably the best method to clone right now. You can generate things pretty quickly doing so, and as long as you aren't using the infinite items or the force shiny code then its not hacking. Solely cloning is perfectly fine, and at this point I'm shocked its not an in game feature.
Also, the Shiny ID thing was patched almost immediately. Its not that hard to breed shiny flawless now though. Destiny knot passes 5 IVs, so if you have a few 6iv pokemon to start with.. You can breed 5-6 iv every time. With the shiny charm and mm, it can consistently take less than 100 eggs.