yup 2 is better cuse what yoster said im going to get one soon
GH has more cooling fins but stage2 has more surface area cuse fins go in more tords glow plug here is the link if you dont allredy have it
http://www2.towerhobbies.com/cgi-bin...?&I=LXDRW2&P=7
and i think it looks better cuse its blue