RockinEmu

Indeed the documentation does say -3, but it's 3° nose up trim. Which I would call +3 trim, as it incurs positive pitch. But we can talk force vectors and shit all day. As long as you trim nose up, you're good.

Trim and speed. I haven't had problems since I started to trim at least +3 on the pitch trim and pay attention to the HUD on the take-off roll, it practically flies itself off the runway.

Flying the Viggen, and no mods. Today it also crashed on loading the main menu. dcs.log-20180209-142234.zip

Did a format and a windows reinstall for 2.5, ran without a hitch for a few days. Now I'm getting sound.dll crash on every exit. dcs.log-20180208-163048.zip

Gotta say I'm impressed with how the Viggen performs in 2.5, and the change log was full of very welcomed features. But seeing as noone has reported this, I think there's an issue with either the cockpit material or texture in your LODs. Close up it looks great, however zoom back and it becomes opaque.