Trailing colors on Toshiba CRT

[CRTguy]

On my Toshiba CF27C40, reds are smearing/trailing slightly to the right around objects and this is also happening slightly with blue. I have a Sencore CR7000 rejuvenator and the tube has tested good. The CR7000 has led bars to indicate emission life and out of the full area of the bar, red is at about 80% emission life, green is 100% and blue is at about 90%. There are no shorts in the tube. I have tested all of the transistors on the neckboard with my multimeter with the power off and CRT discharged and they all test okay. I'm wondering if there is a component on the main board causing this but I'm not sure which one (testing equipment is on the way but just want to get some ideas). Does anyone have any thoughts? The colors are still very vibrant; they just smear to the right for red and blue.