Mike,
On Elites in the service menu, turn Sharpness to -127, and then start INCREASING "Detail" to positive settings higher than what they come from the factory. I don't use AVIA, but I estimate ringing by looking at the white fringes appearing along black vertical edges on a medium grey background.
I've noticed that increasing Detail eliminates these few remaining fringes left after setting Sharpness to -127. With Sharpness set to -127 I find the picture looks too soft, but by increasing Detail this softness is removed from the image WITHOUT the ringing appearing. So I actually set Detail to high positive values and set Sharpness considerally higher than -127 to both eliminate ringing AND keep the image looking crisp and 3D-like. I'm inquiring into what "Detail" on the Elites is doing to the analog video channel, but to date have not received an answer. The service manual says "leave Detail at factory settings"............ yeah, right. Detail even adds crispness to my VHS material while not negatively impacting my filmlike image quality I'm getting (unbelieveably) with VHS and Super-VHS material. I have an idea that the Detail setting may have something to do with peaking analog video channel response separately for luminance and chrominance something like the Sage/Faroudja FLI2220 video enhancer chip may be doing - but this is just a guess on my part.
One advantage the Mits may have over the Elites is adjustment of the decoder. However, I'm not convinced this is true. I'm still looking for unpublished codes for the Elite that may allow removing the small amount of red push in the Elites. I'm wondering if that whole "2nd Factory" section of the service menu (that the service manual says isn't used) isn't where this is done if you know how to access it.
The adjustments to the filter algorithms I discovered is an unpublished set of button pushes on the remote that the service manual makes no mention of.
Adjustment of contrast, black level, color saturation, sharpness, detail, red & blue drive and cut, tint, etc., using a 256 point range certainly constitutes very fine adjustments plenty adequate to tune in superb image quality. The filter algorithms appear to have an adjustment range of only 0 to 64, however.
I actually customize and store individual 480i S-Video/Composite, 480i component, 480p component, and 1080i component settings in my Elite so I get "identical" picture quality (not counting resolution and line doubling) regardless of input source and cabling.
I have been able to throttle down the "white crush" adequately with careful setting of contrast and black level - again customized by input source and cabling as above.
Do the new Mits have the 0.52mm pitch screen yet and red/blue chrominance corrected lenses for the red and blue guns as on the Elites? This stuff enhances image quality also.
How about 72-point convergence on all screen modes being available on the new Mit's? I tweak convergence about once a week on all picture modes (takes about 15 minutes, total) to get superb image definition and color purity right to the screen edges.
I welcome feedback from anyone one what they find when adjusting the Detail parameter on Elite RPTV's.