I'll goind to stay old school, it involves a pump. And even if you hit the ground at high speed I don't have to worry about a gear. I saw a lot of people jump onto the electric gear and yes simple. But I like the tight positive feel of pneumatic operation. And if your creative, you can operate brakes, doors with one servo. Just like Tam does.
Only time I need a trunion is when I hit the ground at 100mph with my gear down.