The error with 4k drives is no longer a problem since myHack 3.0 - there is an issue however with the boot1h installation if you install to anything other than the first partition on a GPT device, I still have to correct this issue by myHack 3.2, with the loss of my workstation and as behind as I am in my actual real life work I haven't had time to correct it.
Use manual installation methods to dd boot1h to your EFI partition on the GPT device to resolve the problem for now.