then you are decreasing the effective range the servo has....if it needs 20"/lbs of torque to just overcome the spring then you've knocked off that 20"/lbs from your servo right off the batt....IMO the TRS isn't worth it at all, especially if you have hi-torque servos and w/ digitals all you do is fry the servo controller w/ it.......the failsafe is definately a better source of protection......I found the in-line types to be a PITA and just chucked it....I had 1 Rx that had it built in back then....now all of mine do.....the in-line ones work well for lots of people, I had a few "unexplainable" quirks w/ my stuff until I dropped the in-line FS......I'd rather have electronics that include all the features I want instead of adding 3rd party electronics to them......