First off I want to say you've made a great plug-in, it's all been working well so far, and saved me a load of money from buying an official shipping plug-in.
I have one issue, that I cannot find a way to offer two or more delivery options (eg. first class and second class) which both have weight/country calculated shipping.
As I said, this isn't essential, but it'd be nice to give customers the option.
Thanks in advance,