Er... afraid I can't. I think the Bluefin stage 1 is great. I would have sent it back if I wasn't 100% convinced.
With a lot of these things you can trial them so give it a go then decide.
dont get me wrong i thought that as well until i tried a revo car and a shark performance car, and it was so much better i paid out a fair wack of money for a new remap. and it was money well spent (IMO of course)
of all the bluefin stages, the stage 1 is the best delivery, the stage 2 was really on/off in its delivery, the stage 2+ improved the delivery, but wasnt a match for revo stage
2 or shark performance stage
2. and they didnt even have the fuel pump.
Ive found alot of guys on the k03 woith similar experiences to me, mostly with the annoyancs starting from stage 2 onwards. whats weird though, is that bluefin performs really well on the k04.
BTW my car made 241Hp/249Hp on DD rollers which were pretty much identical to an Fr with bluefin who went on after me. 2 REVO cars went on and made similar horse power but 30-40Ibft more torque. on the road they just pulled away
end of the day if you happy with your map then tat is all that matters