I've got several limb cuts lately. This wood is for next year and I'm trying to decide which ones to split or just let season. Is there some kind of yard stick to go by? Will a 4" thick oak limb season ok in a year, a 6" one? I hate to split a 4" log into a 2" piece if it's not necessary. Should I do a partial split to help it dry out faster? Just wondering where most wood burners draw the line.