I am new to gas and the NGK CM6s are not available easily in my country. I can either order from Tower or from another chinese site that sells the RCEXCL CM6

http://www.himodel.com/engines/RCEXL...Plug_ICM6.html

http://www3.towerhobbies.com/cgi-bin...&I=LXYZP5&P=ML

Note that the Tower is cheaper than the Chinese site (??!!). I have a fellow flier who is ordering a kit soon and I can combine my order with him. So should I go for the Tower plug or thge RCEXL plug from the Chinese site. Note that the Tower plug (meant for the OS GT55) has a NGK stamp in the pic

Ameyam