Ok, I have confirmation from Xannytech, SPL's are included in chef's Rom so at this stage in the development......
NEVER FLASH YOUR DEVICE USING THE SD CARD UNLESS IT"S SPECIFIED BY THE CHEF THAT ITS SAFE TO DO SO..
CHEFS should mentioned on their First page as they usually do, the Best way to Flash their Rom.
Perhaps in the future Roms maybe SD Flash Friendly, but at this stage they are NOT. Well some are but not to make matters confusing, just simple use your PC-USB way of flashing.