TLDR: can I use the same EOS public key to register against different Ethereum addresses?
The long story: I first used a Metamask wallet to buy some EOS tokens, created an EOS key pair and used it to register against the Metamask Ethereum address. Then I purchased some more EOS tokens using my Ledger hw wallet Ethereum address with MEW. I'm wondering if I can simply use the same EOS public key I already have with the Ledger ETH address as well, or should I generate a new EOS key pair?
I think the other option I have (correct me if I have it wrong) is to claim my first EOS tokens and transfer them to my Ledger ETH address. But I don't really want to do that (small purchase/transaction charges/can't be bothered).
Thanks for the guides @sandwich and sorry if I've missed the answer to this somewhere!