are you logging from the tape, or simply enering the numbers?
what sort of discrepancies are you getting?
are they consistant?
for example, always 1 frame short?
10frames?
a percentage?
is it the same across all your systems?
what's your format: DV, Uncompressed?
what's your deck control: FW, 9 pin?
this forum is for REPORTING bugs, and that involves very detailed description of what is happening, so that someone else can duplicate and confirm the probelm.
with all those systems you can probably do that process yourself.
i havent heard of this as a bug in FCP5, but it's early days yet.
so please write back with more information.
nick