What if you have already registered your EOS to an ethereum address that has other token airdrops such as eosDAC? Is it OK to overwrite with a new EOS Public Key? Should the other tokens be moved first? Or should one just register a new EOS public key to an unused ethereum address before June 1 and then send all tokens over to the new address?

There are several mostly worthless airdrops also associated with the main ethereum address I use. Are they also controlled by the same public and private keys that is seen by the new EOS blockchain snapshot coming next month?