Well it turns out my Spectrum 6030 have as much gear slop as ant of the new servos I have on the shelf.
I did replace the FEJ ball bearing ball links as there was just a tiny amount of slop on the bolt shaft. Originally there was no slop because how tight the bushings were but over time the lose end up a tad, the new dubro heavy duties were very tight
I still have 6mm of slop, I just finished installing a Cortex gyro hoping it can get rid of some of the hunting this f16 seems to do.
I got 6 more flights yesterday