It is this plane, not where i got it from but its the same thing. My tower hobbies trainer dind't have this tilt in it so I was concerned.
http://www.raidentech.com/stev4siiiarf.html
after crashing the tower trainer (long story) a guy sold this to me for 40 bucks brand new cause he bought a lot of them for wholesale pricing. 40 bucks isn't bad even if it is a crappy plane.
Well that does explain the tilt in the firewall. Yes, if Im standing behind the plane, it tilts to the right. Im sure it is not over 5% angle, its probably very close to 5% but its certainly not over it.
Just something I have not seen before in other trainers. Thanks!