I know at one time I had 2 tachos stamped on the back, dated and signed by the dvsa man, or vosa as it was, there was no problems with the cards or vehicle, but no record of them on my encounters` list online. My score was green for maintenance, but grey for roadside stuff saying no historic data. It had been green/green, but the last recorded roadside encounter was over 2 years pervious, so dropped to grey.
Had the stops been recorded, it would of stayed green/green.