Problems with add on aircraft

[Ironhat2]

I fly with a Satiek Evo flight stick.
The basic game native aircraft and the WWII Wings of Power planes all fly well with no problems.
Some of the add on planes from this site i'm having problems with.
Some are very difficult to impossible to trim out. Others everything works except fore and aft on the stick the nose only moves about 5 degrees either way and again trim problems. I can switch to one of the native planes like th 747, Piper Cub etc and everything is fine.
This is most frustrating.

[Ironhat2]

No one else having similar problems with add on aircraft?
All of my add on planes are from this site, FSX.

[Boikat]

It almost sounds like you've been accidentally activating the auto pilot.

[Ironhat2]

It almost sounds like you've been accidentally activating the auto pilot.

Thats a thought, i'll have to make sure that doesn't happen, thanks.

Edit:
I've noticed at least a couple of planes with auto pilots have the master switch on as default with altitude set as well. That may well have been most of my problem with this.