well ive just been out testing my raptor again ,making sure i fixed it good all is well phew! but i started playing around doin fast desents and then full power climbouts and and they aint great[:'(] tried leaning it out no change tried less pitch even worse ,tried more pitch no change,hmmm changed plug, wow big change i reckon thats why it bogged so bad and crashed doh! i thought plugs either worked or didnt?