Well I used my replacement M8 (first one died) on holiday last week. Finished uploading the images (about 200) and every one is slightly soft when viewed at 100%. The images from the first camera were amazing at 100%, which was why I persevered. Anyway, did a quick focus test using the test chart produced by Tim Jackson (from LUG) and shooting at 45 degrees I noticed that the vertical lines were tilted to the right and the shots were soft. Rechecked shooting a magazine at an angle and the RF is quite clearly tilted. Shoot more or less horizontal or vertical and all seems fine apart from focus. Shoot in portrait format and horizontal lines seem fine
Upshot is that I have emailed my dealer (not open Saturday) and requested my money back. I don't think I can persevere any more.
If you get a good one the IQ is stunning, but there are just too many issues.
I've taken my R-D1 off the market.