Okay so I'm doing some research about what suspension parts to buy. I am just asking about bushings not springs or anything else. I came across regular rubber, "Delrin", Poly and my last possible Solid Aluminum. Now I cant find anything on these delrin bushings, except on the guys website which doesnt really tell you much. NOw I had a buddy machine me some solid aluminum bushings for a Supra. These were great. Game me lots of stiffness. But this with a stock everything else. So by the time I would have upgraded the rest it might of been too stiff? Any body got any Ideas ?? More info on the delrin's?? IS Poly gonna be the best choice for corner cutting and daily driving ?? I also plan on welding all the body seams up so that will add some stiffness. Anybody already using any of these let me know what you think of your setup?? Do you wish it was stiffer or softer ??