I have installed the unofficial fix package for the 727, so I don't know if that is implicated in any of these issues.

I could not maintain 35,000 feet.  Autopilot would not hold it, and I "ran out of" nose up trim when I tried to maintain it manually.  In fact, elevator control in general was weak, and I had problems during approach because I could not get any results from pulling back on the joystick.  I am wondering if the change from 1.0 elevator trim effectiveness to 0.3 has caused these problems.

Despite the problems, I am enjoying the 727.  There is a real feeling of accomplishment from radio navigation VOR to VOR.

Another question: is it possible to tune two different nav frequencies?  I haven't seem to have been able to do this.