I don't care if it's auto or manual, but the WB trim is porked.
The trim changes are much too large on some planes, much to small on others.
Examples:
Almost every bomber will not trim for best climb speed.
P-51 and other planes are untrimmable above 25k. The pony in particular becomes very unstable.
P-40 reportedly required a rudder stomp in a dive even with rudder trim maxed out.
Fw 190 had no rudder or aileron trim. But pilots reported no problems at all flying it. If you took the rudder and aileron trim off of the WB 190 it would be completely unflyable.