im used to .035 for an idle bleed but you may have to play around to see what it likes...
as i said earlier the smaller the hole the richer the mixture, all the screw does is give more or less of said mixture.
im having a brain fart and cant remember which (inners or outers) are the idle bleeds... (HELP CB) lol...
once we find out which are the idles and what size they are i would go .005 bigger all the way around and see what happens