Paying danegeld is never a good idea.

The UEFI Signed Boot system is a requirement from Microsoft that all PC hardware refuse to boot any operating system that isn't approved by them. To get approval, you pay the UEFI people money and submit your code. They sign off on it, and you get the magic token that allows it to boot.

Mark my words: everyone using the UEFI Signed Boot system will have cause to regret it.

Putting your neck in someone else's hands is not an acceptable tradeoff.

Details from a reluctant collaborator:
http://mjg59.dreamwidth.org/12368.html