If I recall correctly... the clip/ snap ring should be in the middle for stock springs or it causes problems with handling like you said. Put them in the middle and see if that helps.
Maybe this helps... I dunno.
The shocks come with 2 snap ring grooves. Top one is stock and bottom one is like 20 mm below, which would lower the car about 35 mm. So I lowered it half that much... I'm now running on the top groove (stock).
My toe is always right around 0, 0 - maybe slightly negative up front...
I can't believe everybody that runs lowered setup has a push problem this severe and thinks it's ok, so maybe the problem goes away at 30+ mm lowering ?