lowering - adj. panhard rod & rca's & panhard bushin

[Apolan]

Hi,
i'm lowering my car with some apex springs (-35/-35) and i'm wondering if i need the adjustable panhard rod and rca's up front? From my calculations the panhard rod should be lenghtened for 0.7 mm which im not sure if it makes any sense?

And on a side note, i have a set of prothane bushings - i'm wandering how to get them into the panhard rod, do i need to smack the steel sleeve out from the original bushing? And how to get the 1 piece bushing into the large side of the panhard, as original bush was 2 piece - do i cut it n half or just press it inside or what..

tnx for your time,
cheers