I dont think the summit versions have near as many different backspacing sizes to choose from as the weld wheels do. Other than that, they are pretty close.
I have Welds here for my GTX, they are at least half the weight. I use to run a set on the street but would bend if you looked sideways at them.
Car update- Door handles are installed, mirror, front valance. Cleaned and painted the hood latch last night, finished installing the stainless hoodpins. Have to tape up the harness in the grill area tonight and do some minor work to the grill.
Worked on the dash last night, found the malfunctioning vacuum actuator for the defroster ducts, hope the one in the parts car is good. Want to get done with dash repairs so I can spray the dash and install the carpet, back seat and inner door panels.