They're probably great for hard driving/track but I can't recommend them for the street. Maybe someone else that's tried them can comment on their results.
I went down the same path and had to cut my stock ones off when I replaced the struts so I thought I'd upgrade front and back. The back ones aren't as bad but I also have the clunk fix brackets in the back.
In hindsight, you can get new OEM style ones from Taiwan for fairly cheap on ebay.
Damn that's quite a list of Stangs, by terminator do you mean you swapped a Termi drivetrain in the 98? That is sick the Atlantic Blue 98s were my favorite SN-95 Cobra. I used to have a 94 Cobra and now i've got an 09 Bullitt.