EF vs CFP in quasi power stage

[Tekko]

I cannot remember ever seeing this done, using an EF in the low side stage as well as high side and keep the CFP at small signal level.

http://i.imgur.com/B6AJx.png

Is there any advantage over having the CFP direct at the lower power transistor ?

I assume this have already been done by others.

Oh and in this simulation, no degeneration resistors give the lowest THD, with them im lucky to get as low as 0.1% THD, without them i get simulation at 0.03%

[Bigun]

I sumulated this last year - thought the non-symmetrical output would be good for more H2. I didn't find enough of interest for me in this approach - H2 by itself is not what I'm looking for. Your design has a lot of devices - I don't know how easy it will be to get it stable and working well.