Spirit System

Hi guys I have an Align 470 l.p. But has the metal tail upgrade I am using the futaba receiver with Sbus to the spirit3 unit , I have now spent 2 days trying to stop this slow wag does it after a rudder input , the tail servo is a SH-0255mg the ball is in the second hole as manual says , so far I have stripped the tail down 5 times it's butter smooth , I have disabled the gyro in the transmitter which is a T8J and put gyro control in the spirit 3
The servo has a refresh rate of 240 , the spirit only gives me 200 or 333 as closest to 240 but does not get rid of this slow wag ?
I never had this problem before I use the spirit pro on my goblin 630 and was spot on from the word go , so I am at a loss ?
Any help of ideas please
Kind regards Neil

Hi guys I think I may have found the tail wag problem the 0.03mm washer is missing on one blade grip so have a set of bearing and washers