I am a woodworker and everytime I cut down an ash tree for firewood I wonder if I couldn't be keeping the straightest parts of the trunk for lumber. My questions are: 1. What time of year should ash be harvested for lumber? 2. How do you keep it from drying out too fast and cracking/splitting? 3. What is the minimum diameter trunk I should be looking for? 4. How long should I leave the logs? We have mostly white ash on our property. There are several local mills around me that can mill ash and I have a buddy that has a portable mill as well. Any advice on this would be helpful. Thanks for the help.