I have run the Airtronics 358's since I started in RC, great servos. I was in a jam one time and needed a servo and could only find the JR8800S. The 8800 was quite a bit faster then the 358's and holding power was not a problem at all. I too was concerned about the torque of only 105. JR also has a 3 year warranty where Airtronics is only 90 days. I have the JR9000s I get to try this weekend.
So far I am not going back!