Got the helihobby parts, below are the parts I ordered to trace the glitch problem!

PARTS LIST
1) New G410 Gyro
1) New JR NES-331 Servo
3) Glitch reducers

Here are my findings below;

New Gyro + New Servo = tiny rudder servo glitch

Old Gyro + New Servo = tiny rudder servo glitch

Old Gyro + Glitch Reducer + New Servo = OKAY (no glitches)

Old Servo + New Gyro = Bad Glitches

Old Servo + Old Gyro = Very Bad Glitches

It's seems that the problem was solved by changing the rudder servo and adding a glitch reducer between the gyro and rudder servo, but I'd like to range test this heli for a few days before I declare success, I still dont trust any of this set up !!!!!!!
Looks like anytime the old servo was involved in the various combinations is when the problem was at it's worse, but I still need some time to confirm this to be true, a nice outdoor range test should let me know the truth!