How do solo runners deal with sinister cerebrate/spiritual residue in mateka room? Summoning an APC would work but it's annoying since you can't keep the APC still. I heard using owl coupon works in bakal's numak room. Would that work here too? Or is there any other method people use? Different question, is it possible to convert antoniums into anton souls? The ones that you use to buy raid weapons. If so, what's the rate?