Just FYI.
I have a GVP HC2+ that I tried to upgrade with the 3.15 ROM. The ROM works fine in a GVP HC8+, autoboots and everything, but when installed in the HC2+ it doesn't work. It keeps GURUing, and doesn't boot. Using the 3.15 BindDrivers driver on a boot floppy, everything works as it should. I just wish the scsidev.device would have supported two drives :-(