ORIGINAL: HarryC
I use the ACT Fuzzy Pro SMM on the elevons of my Eurofighter Typhoon. It is very good because it has 2 inputs and 2 outputs, so you can use 2 aileron/elevon channels into the one gyro, and it outputs to each separately. You can manually adjust the gain, and the fade-out so that it doesn't fight against you when you want to roll. The gain also can be adjusted by radio.
Harry
Harry has hit the nail on the head here. The Fuzzy Pro SMM Jet is the gyro of choice for those wanting that rock solid "on rails" look. It is also, however, the most expensive toy plane gyro you can buy. I import them from Germany and sell them on my site, but there's no softening the blow of the price.
Please let me know if you have any questions about them.
Chad