He lets me "sandbox" custom codes in different regions just to see if it will work... for free.

I can respect that when a guy comes out and admits it and doesn't try to hide behind some other label because liberalism may not be popular with a certain crowd.

I know gmail uses labels instead of folders.

As a last resort if the window is a custom design then this would be the worst option since you will need a custom ($$) replacement.

Some come back with a yellow label that bears their new address.

This however will become evident when you actually see how your customized set of numbers work out, and compare the result to what is necessary to achieve your personal financial objective.

These customers are narrowed to a particular brand and model.

Both political parties have smart and dumb people who support them and the dumb ones are the loudmouths, proclaiming the purity of their beliefs and labeling their opponents instead of responding with reason.

I suggest you talk to an attorney in your area as local custom and state law will have an important role in setting up the tactics of this deal, IMO.

Have you ever looked into buying a customized handwriting font for your computer?