Can I have Party *and* Empire accounts

[DarthIgnurnt]

I have an Empire account, but I like the MTT selection much better on Party.

Since Empire is a Party skin, they apparently have an agreement where you can't have an account on both. Makes sense, but I want one ... and it's clear that there are people with both.

When I try to sign up on Party I get a message that says I'm not able to because I have an Empire account. Different email address, same message.

Is this a cookie on my machine, or does it key off of some other information?

Anyone know how I can get both accounts on one machine?