the axis adjustment trick absolutely does not work for me.  i have tried just about every combination of adjustments i can...and all the weird fixes folks have come up with as well...  i am trying a couple of other things...and will decide tonight if i will ever try to fly this game again.   
"horrible pitch oscillation" - do a google on lomac pitch oscillation...  you will find quite a few hits.   
so to explore the failure to trim...  i know how to trim an aircraft - i am a PIT.  i understand what you are saying, but letting go of the stick leads the aircraft to bounce opposite, past what should be equilibrium, then back again like a pendulum.  it eventually settles but takes too long - 15 seconds or more maybe.  if the aircraft is improperly trimmed it will just go in one direction - not bounce back and forth.  and trim goes for yaw as well - but that effect is not present in the yaw axis.  it is so bad, i can not get a pipper steady on a target even with constant pressure guiding the direction - it just bounces around.   
the devs have time - Han answered an e-mail I cc'ed him on about the fiasco with Evolved and the #2 cd in the Gold Pack - twice.  for a problem that quite a few have experienced, they should spare time.  i know, i am responsible to 3rd tier tech support out of my companies engineering organization.  everyone is busy these days and has multiple responsibilities.  i know what it means to take care of customers...they will keep coming back as customers.  blow them off and you don't get repeat business.  i guess it depends upon the business model of the company.  they have my one shot of cash already - so maybe it is not biggie any more.  that remains to be seen.