warpspeed
To Infinity and Beyond!
I do wish for it to become a standard but moving to IPv6 is gigantic pain in the ass. Some ISPs have already set up dual-stack so we could only hope they start moving to IPv6 rather than staying there. I'm not exactly sure what ACT blocks FTP means, My ISP deploys similar double NAT setup and SSH/ SFTP seems to work just fine for me.