I actually used your guide for the first few chapters. Afterwards, I used my overlevelled Avatar as an Assassin and used 2 sorcerors with nosferatus. my avatar had lower defense, and the enmies often targeted my avatar over the sorcerors, so counter wasnt too much of a problem. The most challenging/frustrating part was probably the very beginning, and the amount of soft reseting I had to do (my R button is pretty much broken)
I'm getting ready for Apotheosis. However, during the game I got Inigo and Owain, and I didn't pass down Galeforce, since I didn't have a chance to since I didn't really train Lissa and Olivia.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
During the game, I was wondering if I should just dance Olivia a gajillion times to get her up to max stats and use her like that. But then I figured it was like grinding, and would take way too much time.