i use McCoy MC8
its a med/hot plug good for early to mid spring(50-75F) weather here in NEPA.
then in the summer (75-95F) i go to a cold/med plug in the hotter temps.
but i also run 20% byrons race.
so its kind of a trial and error thing with finding out what plugs to use. i race and thos MC8's work great for me
and only 7.00 a pop too!!