had the plugs changed about 18mths ago (whilst on stock map), so i am assuming with your bog standard Golf plugs, then had Bluefin Stage 1 a few mths later, so that's why i decided to go straight to a custom Stage 2 remap with R Tech a few weeks ago, after returning to stock map of course! Don't get me wrong now, the difference is like chalk and cheese in terms of 'poke' and torque, it's just the spluttering (when idle) i get through the car/exhaust now that's making me ask questions!? I have a Twintake, you responded to me about this on a different thread about 15 min ago, lol!
I am going back to see Nick in a few weeks, but in the meantime he has advised that i change the N75 (see whether i can attain more than the 256bph i now apparently have!?)
Andrew