i would talk to frank at prodigy. he has some good info on the coilover vs conventional battle.. i went with speedtech uppers and lowers. circle track 650lb springs with adjustable cups and qa1 shocks..
I did the Gulstrand mod with DSE uppers. I really cant justify the cost of ATS spindles. Maybe you all can. With the car lowered down the way it is there really is no noticeable bump steer. Again they are really nice to look at and a really nice product but I would race any one with a stock arm and a ATS tall spindle all day. There are many ways to skin a cat, I just preferred the tubular arm/gmod over a tall spindle. I am curious what the weight difference is between a stock spindle with aluminum hubs and a tall ATS spindle. Also I am sure that you have proven the quality of your product I have no doubt that it is great, but since you brought it up, I would like to see a head to head against a stock frame ATS setup vs. a DSE frame equipped car. Maybe one lap vs Blue bomber
I am kind of a bang for the buck Guy that buys parts as I can afford them. So if it doesnt have a big bang I dont buy it.