My suspension set-up is in my sig and Ive had no problems with it at all. Its not a hardcore racer set up but it rides awesome and sits well with my eibach sportlines, hands down, way better than my stock junk.
I bought my shocks and struts from AM when they were on sale, I bought my springs used and my cc plates used. Everything together= :rockon
Besides the drop there are minimal differences between the two. The ford's, h&r's, and eibachs are all progressive style springs so they are all about the same.
Drag launch springs are a different style and geared more for getting the best weight transfer as possible when drag racing, and certain springs, like the bbk gripp springs, are for road racing so they are stiffer springs so keep that in mine when choosing a spring. These springs are more for specifics, so if your a hardcore drag guy, obviously go with the launch springs. and if your an autoxer then go with the bbk gripp springs.
If your looking for normal everyday driving springs the eibachs, h&r's and the ford springs will be your best choice for an "all around" style spring.
This is why people always ask "what do you plan on doing with the vehicle" theres alot of factors that go into choosing then just the drop and will it fit my car,imo
Also, theres a suspension sticky running around here somewhere that should help....
EDIT: Here you go...
http://www.moddedmustangs.com/forums/modular-mustangs/92453-official-suspension-guide.html
