Right update... after trying 0.8, 0.7 and 0.6 on AGPR902P's I have come to the conclusion that they are total wank. Had misfires on boost with the bigger gap and yo-yoing idle with the smaller gap to the point that the engine was nearly stalling at lights!

Am now back on trusty 071's gapped @ 0.65mm and was on full boost all the way home with my cock in my hand! No problems what's so ever.

071's all the way! No need for any others 👍🏁 Poweeeeer!