I wouldn't do it like that. That places a tremendous side load on your servo bearings and output shaft.

That's where you'd be better off to use a bellcrank. The bellcrank takes all the side load. The bellcrank has bearings that are twice as big as your servo bearings, so it can handle the loads. And bellcranks are cheaper than servos if you wear it out.

But, thats just my opinion. And I'm kinda anal. So, take it for what it's worth. $.02