It looks like one of my post doesnt appear. If it does later on, sorry for the duplicate.
@ : if my tests are correct, the parameters from Klepadło (post #169) produce a similar quality than the parameters from Koola (post #172), but faster and without any modification of the baselightmass.ini.
The only way that I understand this, at least regarding the problem with shadows, would be that rising the IndirectLightingQuality replaces all the modifications suggested in the baselightmass.ini under [DevOptions.StaticLighting*Quality], ie not only NumHemisphereSamples(Scale) but also DirectPhotonsScale, NumIndirectPhotonsScale and NumIndirectIrradiancePhotonsScale.
Is that correct ?