We have a couple of very large Elms which have just died of the disease, are not rotten and still standing.  Around 30 inches in diameter. I would quite like to convert them into flooring with the Lucas Mill.  I have been successful with Ash and Beech flooring. Do I need to treat Elm differently?  Do I plank it immediately after felling or wait a while, does it need strapping down more tightly in the sticks, is quarter sawing more important. etc etc, Any advice would be welcome.