I am not a fan of Heim joints on the street, Wone thet begin to wear they get too noisy. I have one on my MJ in the track bar and so far its quiet, but when it begins to make noise I will replace it with a TRE.
Off road they are GREAT, better/more articulation range and very solid feeling.
the deciding factor for me would be its use, mostly to all OFFROAD, go for the HEIM. Mostly on, most defineately, go TRE!!!
have you run heims on the street ??
I thought that that would be the case ..runnin heims on the street ..but a guy in my club runs em on his DD and he likes them
then I ran across this
http://www.naxja.org/forum/showthread.php?t=71920&highlight=heim+tre
changed my mind about heims on road