Hands down, the absolute BEST harness, recommended to me by ALOT of Schutzhund enthusiasts, is this one:http://www.bridgeportequipment.com/Prod ... oductId=96
and yes, you DO want the tracking harness, NOT the agitation harness.
I can completely attest to the quality of these harnesses. The leather is amazing, they are unbelievably adjustable, STRONG and they have very nice sheepskin padding on the chest. Not too mention, only $46.
Don't let the cheap price deter you, these are the best harnesses out there! I will never buy a different one!