I've been trying to write the perfect MystCraft age for me to plunder for its resources, but unfortunately including the Dense Ores symbol invariably seems to make it unstable. At least I get hit with a debuff when I travel there, which I'm pretty sure indicates instability.
Is there a combination of symbols or some sort of mechanic that I can use to get me that stable mining age? Failing that, is it possible to write one that's at least structurally stable? I.e. no decay blocks, meteorite strikes, or anything of that kidney. I can live with debuffs. Or rather, my quarries can.
I know I can probably do it via cheating or admin commands, but that doesn't count.