The majority of my customers ( Scottish Info on a Basic Service ) apart from advising the level on initial contact never say again if they go up or down.......thats fine by me and keeps the R/T to a min. That said there is always the one that will tell you every time he adjusts even by 50ft!! . Based on that if I give traffic information I tend to ignore the level and just use the geographical location in deciding if I should advise other traffic.....i.e. I may say "a C152 just reported Stirling last reported VFR at 2000ft.
