PEN:Zecime is a long ( so throws away everything after the decimal point.)
p_web.SSV('PEN:Zecime' is a string, so doesn't.
So no, it's not a bug. It all depends on what you do with those values -
>> 1.The results of first code will be 179
>> 2.The results of second code will be 178
you aren't showing how you _investigate_ those results - but that will come into play.
cheers
Bruce