Lower control arm bushings. Help.

Actually the last time I changed out bushings was on a set of QA1 tubular arms. Can't believe they put stock style rubber bushings in a brand new tubular LCA. I swapped mine out for the Delrin ones from Bergman AutoCraft.

And yes, I also gusseted a brand new set of tubular LCA's.
I can't believe QA1 puts rubber bushings in those. That is just dumb. I thought they'd at least have an option for poly bushings.

BTW whats the verdict on poly vs delrin LCA bushings?