Since some people asked about it, here are the formations I used. I also used the Father's Day buff and golden epic on Thalia and lots of time warp buffs to super-charge things a little. I got to 500 largely with little trouble, then up to 570 using the middle option and lots of buffs. The last 30 I mostly used talents, going up a couple of levels, falling back, upping Draco where I could (note that these don't reflect the levels I had at the time -- Draco was around 3575 or so at the end). I saved a few big buffs for the last push, just to be safe, and made use of chests as well to help along the way. Draco has his golden epic but only the rare other DPS raiser. When I used talents I'd hit the magnify, wait for it to refresh, then go up to the level I needed to get through with auto-forward and hit savage strikes, magnify, click-o-rama, gold-o-rama and power through a level or two, then drop back to a safer zone until the next time. Took a few hours to get through the last 30; I was running fairly low on buffs at that point, so if you've a better stockpile you might be able to go all the way up without pause.

Here are the formations: http://imgur.com/MSJ50R5

Hope this helps some folks!