FlyBoy,
Nice setups with all these engines
By the way, I did not know a clear cowling was supplied with this kit. Is it an option ? Or a recent add_on ? SalmonBug did not have any on his (check his thread).
Regarding rudder brakes, he told me that they were not that much effective, but really add to the cool factor

. Deltas can be slowed down much more easily than other airplanes by just increasing angle of attack, as you probably know.
I have a video of a low pass with rudder brakes fully deployed...