Hacking Rock Band Instruments are not recognized

[Sacohen9665]

I read that REV 14 has fixed most of the USB issues.

Is this correct or do I still need Hermes cIOS 222 for the Rock Band Instruments to work properly?

I thought I had it installed, but everytime I try to set my USB loader "CFG 39" to use either 222 mload or 223 mload it locks up and I have to hard boot.