I also got mine from Chestnut Ridge of Pike County this week. (20# large)
This year was my first go at growing Dunstans. I started most in larger containers until taproot emerged then moved to 18 cell rootmaker as bbarrett described. Babied them all summer in the pots and just planted them in the field this week.
I direct seeded about 20 seeds in their permanant home around the middle of January. Half of those had no protection, and I have not found a single one of them. The other half, I had a piece of vinyl gutter downspout laying around, cut it into 12" pieces planted the seed and stuck the downspout over it pressed into the ground. I have 9 out of 10 that have survived.
The first 2 pics are the same tree about a month apart.
For this coming year I bought 10 sticks of the vinyl downspout and have them cut to 6", so I have 200 protectors (I hope). Around April or May, I plan to remove them to use the following year and place the rigid mesh protectors on them.
One article I read suggested using 10" tall rolled aluminum coil trim. Then cutting into 12" sections, rolling to form a cone shape with the top slightly smaller than the bottom and taping it. They also suggested using a stryoform cup with several holes poked in the top placed on top of the tubes until the seeds started putting on top growth.
Just thought I would share my experiences from the past year. I continue to look for ideas on ways to improve my chances for success and thank others here on the forums for sharing their knowledge and experiences.