Jetting Polini 130 phbl 25b carb

I'am struggling to get the optional setup voor my 130 polini Mono. I'am running .55 idle, .95 main, circlip 2ste position from the top with a bosch W3AC in 16° (parmakit) and a left Polini exhaust. The case ports are adjusted to cylinder, not massively enlarged.

From midrange until WOT it's godlike, but the idle is real hight. I went up till .70 to get lower revs in idle, but it doesn't work.  

How can ik get lower idle?