I posted this issue in a different thread, too, that approach in the 727 is extremely difficult, and I'm not sure if its the model or the related issues with the pitch control and yoke oscillations.  When I try to fly an approach at under 160, it dives like brick.   If I pitch for 160 and then try to find the right power to hold it, it is difficult to fly.  I've tried hand flying it, and that's tricky too, because the initial increase in power tends to first decrease vertical speed and then increase.   I'm a real world pilot, so I know how to fly, but this thing can be tricky on approach.

Its been suggested to me elsewhere that you should fly the approaches much faster (as noted above as well), but that shouldn't be the only solution, as trying to shoot an ILS at 200 when others are doing 180 or less is going to make you unpopular with ATC.