If other popular front arms could be 1/4 as good as writes were. The write arms on my 4 seat 1600 car date back to the original rule change and have been on 2 cars that were total losses including 1 car that hit a 4 foot brick wall. Totaled the front end of the car but the arms were still straight. I forgot about Mike Spinas car that happens to be my single seat car I own I believe. At least people have told me it was. I dont know but who ever had it after Mike changed a lot of things but I see things that show it might be his. The first car I saw was Ramseys and Dave talked me into it on my 3rd car. Some places it was great, others not so much and was hell on torsion leafs! Parts of the travel has very little to no shock working, you could grab the front wheel and move it threw a portion of the travel by hand, something you cant do on my front ends now. Working off the leafs didnt keep them very happy for very long, a set a race is what we were going threw with the progressive front end where my car goes years on them the way it is set up now. threw lots of turns it was fantastic, you could keep the car level with the wheels dancing with the terrain, big woops and holes forget it, we tried all sorts of things it would just blow threw the travel a lot more than a standard set up and the leafs would tap out and say no mas. a lot of pros and cons, Cam and I liked it a lot better the standard set up! but it did generate a lot of intrest at the first Mint we took it to because it was the first totally redesigned Race-co 1600 car. At that time there were all kinds of new cars each and every race/.