For the upcoming BTC snapshot (block 492820) that will translate to 1 BTX for every 2 BTC.
Will this work for new SEGWIT addresses (beginning in 3XXXXXXXXXXXXX)?
It is currently not possible to sign a message from such an address and the previous BTC claiming service required that you sign a message to prove ownership of the address.
How will this 2nd snapshot and claim work s the Dev roadmap is unclear (talks about private keys but to be honest I am not putting my BTC private key into a BTX client.)
First, Sorry to tell you but it's 1
BTC:0.5 BTX
Second, where is the problem? You can just move your BTC after the snapshot and export the key of your now empty address. No risks.
But since the ratio with 0.5BTX (~0.0005
BTC) for 1
BTC is very low ATM, I don't think you are in hurry, because at the moment it's obviously not worth much and you are will be able to grab it every time you want in the future.
About Segwit addreses I don't know if they just translate, but since Segwit is activated it just should.
First sorry to tell you, you got everything wrong, 1 BTX for every 2 BTC equals 1 BTC for 0.5 BTX, it is basic math, you should've learned that in school. If you're that bad at math, you shouldn't be in crypto.
Segwit addresses are P2SH they do not have a corresponding private key so you can't sign messages with it. The ratio is not low especially not for long term bitcoin holders and expect a drasic price decrease after we claim our BTX from our bitcoins.