In GT 6 you can set crushed Ores and Ores to a stacksize of 1 if you want.
That's nice news.
Considering this...
Complete Ores : 16.
Crushed Ores / Dusts : 32.
Logs : 16.
Planks : 32.
And others... 32 ?
Unless someone rages, this will probably be that.