Yeah, I had a horrible time with mine. Anything beyond simple, let's say scale flying is sketchy for me. I put red stripes on the bottom of one wing, and surprisingly, I didn't find it helpful unless the plane was really close. I have to really pay attention when I fly that plane! The Sportster in yellow and black with wings twice the width of the P40 is a joy to fly. However, I did crash once when the fog rolled in and I lost orientation. Crashed it hard, still surprised it was repairable. The Sportster sort of looks like P47 in the air, and if you make it nose heavy, it's flies so fast and beautifully, not unlike the P40, just a lot easier to see.
Glad you mention the orientation issues, I really thought it was just me.