You will find motor angle and proper CG are probably the two most important things on the Stryker when you want to go fast, and have it perform well.
A tip I picked up somewhere. The design of the wing of the Stryker is a lifting body. that's why they glide so well. As speed increases, so does the lift effect. The faster you go the more she want's to climb. There in lies a problem. To combat the lift you need to keep dialing in more down elevon, this pushes the nose down but adds drag, that slows you down. [:@]
How do you fix it? Well you can go the route I went on my fastest one. I redesigned the wing to fully symmetrical. Works great for speed but looses a lot of lift, not good for slow flight.
Here's where the tip comes in. Set the angle on the motor to push the nose down, the more the better. At launch and low speeds you can trim the ailerons up to compensate, you're not going as fast so drag is not a problem. Now the faster you go, the harder the motor is pushing down on the nose as the lift from the wing is trying to push it up. They cancel themselves out. And as you are not applying down elevon, there is no additional drag being added.