Hi, I am experienced using Mundorf Silver/Oil and KSG capacitors further. I think, despite of high respect of Mundorf S/O, they colors the sound a lot, KCG-s do as well, maybe not that much. There is a very important capacitor, namely C9 (DC blocking capacitor) just in SERIES in the signal path. I got some Russian military SSG-3 (CCГ-3) 126 nF/350 V Silver Mica’s from Vilnius. Because of their size, I made a new rout to receiver chip via a BNC terminal installed (do not forget there is a 75 ohm between signal to ground just before silver mica). I put 0,252 nF CCГ-3 silver Mica’s (C9). The result is surprisingly good (stunning). I highly recommend trying this tweak. János (to get CCГ-3, search on US e-bay)