David, given that many Nikons underexpose for exactly the same reason I can't see why it should be any more of a problem on a Pentax. I have no idea how long a reviewer will have a camera before writing their report but do remember that they have the same exposure to every camera they review so their impressions should be gained over similar periods of time. They also get to spend considerably more time with the various cameras than we do in the shop so their comparisons are more educated than ours. I don't think you are being unreasonable, I am however slightly miffed that so many people, judging from the number of responses to the two threads, think it appropriate to "have a go" at AP tests. In my experience they are about as impartial as you can get and pretty accurate. In truth, if you own a particular make of camera you are biased, whether you admit it or not, and thus defending "your" camera is an expression of prejudice. What I was trying to do was to remind everyone that 1, AP are trying to be impartial and 2, we (those who complain at least) aren't being impartial. If the K20D gets a higher score than the XYZ MK3 Z it probably deserves it. When it is scored lower there is a reason but it isn't personal.