Here's the thing: PG actually scales, so even with CR assistance you can make it unnecessarily tough. The "sweet spot" for gear is like ilevel 630, give or take. When you scale up gear to around 700ish, the difficulty scales up dramatically as well, to the point where some classes have a lot of difficulty doing it. My advice would be to use Enyo and a good CR yourself, but "dumb down" your gear for it. The tuning in PGs is really, really bad.
The encounters are exactly the same, its just the gear scales down., no need to dumb down or dumb up at all Dungeonbuddy do it fairly well with 100% afk, if you are 610+ ilvl. Doing excessive gear preparations for bronze or even silver is more than pathetic! You can do them only if you want to achieve certain achievement or FoS on Gold or Endless waves etc.