I took my 1966 MGB to a friendly MOT's only place in Jarvis Brook, near Crowborough as I always take the car there. This time he said all ok except one of the rear brakes had low performance. He knew and could see the car was very well looked after. He passed it without any advisories and he asked if I would check it out as soon as possible. I did just that and found a leaky wheel cylinder. Replaced both sides and new shoes, all done. A different example is my son took his T25 to a local tester in Bexhill where the van is always tested. The tester has a T25 himself. This time the van failed due to rust in a prescribed area at the rear sill next to the rear trailing arm. In my view he was correct and should have failed it as the location is a critical area. You don't want a tester to ignore critical issues. I took my Bay to a local garage near Lamberhurst which does work on older cars as well as modern. The tester has 2 Bays and is an enthusiast. The van failed as on the day the electric screen washer pump failed so no squirt. They refused to pass it. I fixed the washer and they passed it. They pointed out an issue with NSF brake as an advisory. I am happy they tested it thoroughly and suggested I check the brakes out. which I have done. I feel these 3 experiences do show that MOT testers do a professional job.