I have tried using the Replay Safe Split at 0xAA1A6e3e6EF20068f7F8d8C835d2D22fd5116444 with no success. The contract moves the ETH, but the ETC stays in the original address. It is not lost, just does not move. I contacted MyEtherWallet and got the response I will paste below. Can anyone give support to the answer I was given? What is your evidence that the replay attack is no longer an issue? I get a lot of conflicting info as I researched this issue.
Taylor @ MyEtherWallet.com
There is no need to use a splitter anymore. You just send ETH normally and then ETC normally. Only one will move.
In order to see your ETC and interact with the ETC chain, you must first be on an ETC node. Select "ETC (Epool.io)" in the node switcher in the upper right corner of https://www.myetherwallet.com/
Then you can unlock any wallet to see your balance or send a transaction in ETC.
You can also view your ETC balance here: https://gastracker.io/
In order to switch back to ETH, simply change the node back to an ETH node in the upper right.
Taylor @ MyEtherWallet
Co-Founder & Answerer of Questions