Either way will work. If you have the capability to learn and understand the tuner it is definitely the way to go. If you are the sort that doesn't work on the bike much, get the flash and forget it.
It's a no brainer to initially upload the stage 1 flash from the tuner software, so even if you use it no further as far as programming the bike more then half of it's cost is already coverd by what you save and you end up with a very valuable diagnostic tool.
It's a no brainer to initially upload the stage 1 flash from the tuner software, so even if you use it no further as far as programming the bike more then half of it's cost is already coverd by what you save and you end up with a very valuable diagnostic tool.