That's too bad ... I was under the impression that the actuation counts were available for the 1D bodies although not for the non-professional bodies and that they were accurate. I know my 5D does not expose the actuations. Anyway, I keep my firmware up-to-date and don't cross-load settings, if that makes them more accurate. I'll give 5.4.3.2 a shot when I get a chance, thanks!