One for the reloading junkies
Is it possible to damage brass in an attempt to anneal it by either heating it not hot enough? Or doing it too hot?
If you started by heating brass for 2 seconds (or whatever), then 3, then 4, then 5 and so on to find out what works best, are you mucking something up by heating it again and again?
As long as you don't turn it to slag obviously, is there any problem?