Just noticed yesterday that it is even possible to tune the throttle response with FP3. Turned mine to "aggressive" and now the response is immediate.
Switch it to 1:1 race and it's even better ... once I tried that I never bothered with anything less. The FP3 is a good bang for the buck and I love mine. Most here swear by getting a "professional tune" like it's the bible and the only "right" way to do it. That's fine if you have time for a long road trip, spending the extra cash and watching someone hammer your bike for however long it takes to extract every last once of power from it ... no thanks. V&H knows what they're doing too and my bike runs a lot better than my old RG did with full exhaust and a Race Tuner with a canned map from the stealer. The FP3 was cheaper than a Race Tuner and you can diy vs. the stealer's canned map/dyno routine.
Don't let all the trash talk about the FP3 being a cheap canned tuner sway you from buying one if you were seriously considering it, it works great for me and many others that have it. Maybe it isn't for everyone, but it won't disappoint you for the money and what it will do for your bike. Sure, Dyno Joe Blow with his choice of tuner might get me another pony or two, but if I really wanted a race bike to bounce off the rev limiter, ride wheelies on, do burnouts and beat the snot out of every minute of the day ... I would've drove right past the HD shop and rode home on a bone stock crotch rocket that would embarrass any HD that just came out of Joe Blow's with everything under the sun done to it. To each their own ... if you want your pampered, comfy cruiser to have a little extra snap over stock like me then the FP3 won't let you down.
Not sure why a lot of guys give it such a bad rap when I haven't witnessed ANYONE even try to dyno tune with it. You can raise/lower your idle speed and rev limiter, change front/rear VE tables, spark tables and a/f ratio and a bunch of other stuff I personally wouldn't screw with. I suppose it's only downfall is it uses the factory narrow band O2 sensors unlike some of the higher end tuners that use wide band sensors. I've looked high and low for a bike tuned on a dyno with the FP3 with no such luck. Not that I actually need anymore from my bike, but I am curious to see how it stacks up against a comparable tuner on the dyno. All the good shops/tuners out there today I'm surprised nobody tried the FP3 on the dyno ... even just for chits and giggles, either way I'm happy with mine.