Given that you can see trim tabs and adjusting trim has the effect of moving trim tabs I'm not clear on what you mean when you say they aren't modeled. Do you mean that the tabs don't move on your monitor like the stick and pedals do?
no, they don;t. i can see the ailerons, rudder, and elevator move though.
there was a thread a couple months ago, just on trim in general, rather than being specific to the 38. in there, someone had brought up the fact that there are no tabs modeled in here...functionally that is......
like i mentioned before, i pretty much adjust for the speed i want to fly at.
if i'm in a slow fight, i do trim a lot of up elevator. i know it doesn't give me any turn advantages, but it does seem to "feel" better to me.
the only drawback, is that if the con extends, then i have to re-trim for fast flight.