A few things things I noticed right away:


#1 The insulation on the HFT terminal came right off and really had little to no adhesive properties.


#2 The FTZ Crimp 'N Seal terminal fought me the entire way of removing the insulation.


#3 The FTZ terminal was more robust.


#4 The OD and ID of these terminals are not the same either.



HFT OD = 5.36mm
FTZ OD = 5.52mm
HFT ID = 3.69mm
FTZ ID = 3.38mm