Really, what is "good" convergence for a monitor new out of the box? I've never seen a monitor over 19" that had perfect convergence, and it seems that the bigger the monitors get, the worse can be expected in image quality. Or am I just imagining things?
For example, my little Sony Trinitron PVM monitor has seemingly exact convergence. I cannot detect any trace along any line in a grid pattern.
My GDM trinitron is a 20" model and has only a little big of misconvergence, noticable only in the corners of the screen.
My 19" TV is pretty good, with just a little bit in the corners.
My 37" Mitsubishi monitor is misconverged a little bit on the blue and red colors in the right hand side of the screen.
My 37" Toshiba TV is just horrible. Green is misaligned just a little bit over practically the whole image, with red and blue in some spots as well.
BUT, even with the misalignment, all of these monitors display very good picture when playing games. I think looking at a grid will annoy you and make you think there is something wrong with your monitor, even though you have probably been looking at lower quality images for most of your life.