And it's been over a year and a half, and i can tell it is time to touch up the convergence again on my CTC-16XL, ans it has drifted slightly and is not as sharp as i want it to be.
I guess every times it's tuned on/off (thermal cycle ) it drifts a tiny bit.
gonna wait for the next work holiday to do it however.
as always for me it's a hours long event going round and round with my face 2 inches from the screen, cause i can't use my glasses to do it cause of the chromatic aberration the lenses cause