Never owned an escos but every car I have been in with KONI have always been on hardest setting, still too soft IMO.
I used AHMED springs on my sapph for three weeks whilst doing some work a while ago, NOT a patch on AVO COILOVERS, not even in the same league.
I have used bilstein/eibach(still on g/f's car) LEDA/KONI/SPAX/AVO.
IMO KONI, better than billies/eibach, but nothing comes close to AVO, why I use it.
tabetha