Interesting thread to say the least really because I have an A and B body that are in line to be built and front suspension is a concern for both. Like so many things these days, there are strong opinions on all sides and a pile of people in the middle trying to determine what is what. I would offer that also like most things today, the truth lies somewhere in the middle of the issues and is very dependent on one's view, experiences, and desires. I choose to retain the factory designed systems mainly because it is familiar and it fits. I cannot debate which is better suffice to say that there are many people on both sides using each system successfully. I think the CO systems look cool and offer some bragging rights, but I am not convinced they offer enough of an advantage to warrant their cost. As to cost, someone here stated that it is about a wash when you compare the 2 systems, which I don't believe is entirely accurate. I would have to do a cost benefit analysis to really determine the true costs associated with both courses of action; that said its a matter of prospective I think. If you are doing a brand new build from the ground up and buying everything new I believe the costs will be relatively commensurate (maybe); however most people are not generally doing this, they are trying to upgrade their car a little at a time. In this case, staying with the factory stuff has the advantage of allowing incremental development whereas going to a CO system does not. As was pointed out here, the vast majority of owners will not drive their cars hard enough to really appreciate the differences between the two systems (whatever degree that is). That said, every hotrodder wants to make their car "better" (me included), the answer to the question of "what is better" is why threads like this exist. I would offer that the answer to that question is an individual issue, what do you want, what can you afford, etc. I will add that my own experience with a CO system was with a MF system on a 70 cuda I helped install with a friend, in that case it was a nightmare and left a lasting impression on me. If I ever did go to a CO system, it would be about anyone's other than MF. The 3 wheel car video is awesome.