yes, the risk is higher and several people have reported failure. Most MOBO's do not have recovery procedures from a bad flash. Don't do it on any computer you can't live without.
Updated List of working BIOS Mods Is it possible to put all the working BIOS SLIC 2.0 mods at the Sticky of this thread, as it is difficult for people to find if one has already been modded and is working, as the the Sticky at the start of this thread is very out of date. Only a suggestion, thanks to all the BIOS Mod team