with all the user friendly software out today, EFI is easier to tune than a carb. no needles, no jets, no plug readings. just a fuel map on a laptop screen, and when youre finished you hit "upload". then you stick the o2 sensor in the silencer, rip a dyno run, and check the Air fuel ratio. adjust as needed. no more "its rich, its lean" its is now "it 12:1, its 13:1 ect ect." absolutes. no guesswork. no disassembly needed to change air fuels.
this isnt voodoo. 500cc grandprix bikes were running EFI in the mid 90s.