"mikem" wrote in message
...

Last time I had it done by an on-field business, it
cost about $150. Call around. Btw, the standard practice
seems to be not to actually drain all of the fluids;
rather, the fluids are "backed out" of the calculations
to get the "empty weight and moment".

That's how I got into this conversation in the first
place, and why I think my existing W&B is out!