PaulT - Thanks for the informative reply and the article link. My strategy is similar to yours in testing several varieties for adaptability to my environment. I have a local hunter taking on the turkey and deer which will help in setting their travel paths. I do intend to follow the sequence of clear field-> set deer fence->plant cover crop->set posts->tile-> construct trellis->plant vines. At this time I'm at step one but planning for later steps. On the tiling side why go down 6 ft when most seem to go for 30-36 inches? I thought tiling depth is related to where most of the root structure would be. Lets keep in touch. Cheers.