I already know about this, but the problem is it can't deal with combined shipping. For me, at least, this is the main reason why I'd like to get an Ebay shipping calculator.
I'm not sure how a CP shipping calculator would work for combined shipping, you need to know the weight AND dimensions to accurately calculate postage. Unless the package size does not change (only the weight) there is a lot of potential for costly errors.
Keep in mind I've never used a shipping calculator, like most sellers "shipping" involves more than the raw postage costs.
Ben

"What else could I do? I had no trade so I became a peddler" - Lazarus Greenberg 1915

"What else could I do? I had no trade so I became a peddler" - Lazarus Greenberg 1915
- answering Trolls is voluntary, my policy is not to participate.