I've been meaning to pm you but havent gotten to it.
do you have delrin solutions for these bushings?

im most interested in 1 and 2
Doran Racing NISMO RC suspension parts
why'd you choose delrin btw? just curious. ive read alot about stiction and binding and there are select places where delrin/poly should and shouldn't be used and other places where spherical solid is recommended (but not necessary).