I had H&Rs on my 99 GT with FHI Ver5 struts. That was one sweet setup. It lowered the car to the point that i could fit two fingers between the rear tire and the fender.
Unfortunitely at the time I had wheels and tires that stuck out a little too far and contacted the fender lip. I ended up moving to a Ground Control setup with KYBs. I am getting rid of the KYBs and going back to the Ver5 and trying to get rates that are close to the H&Rs. That way I can have the nice stiff ride with zero boddy roll at any height.
Loved my H&Rs!