Keep kneading until the dough forms and becomes less tacky. It may seem overly sticky at first but if you continue kneading the dough it will come together. If it still is overly sticky add 1-2 tablespoons of all-purpose flour and continue kneading.
Substitute vegetable shortening for lard. You can alternatively substitute vegetable shortening for lard to get the same flaky layers.
If the dough is too loose and hard to work with, place the dough in the refrigerator. This will firm the dough right back up and make it easier to work with. This will vary depending on the temperature inside your home.
Roll the combined dough gently. When rolling the combined doughs together, roll gently to prevent the dough from ripping through the layers. The 2nd fat dough layered with the first dough is what creates the lamination and the flaky layers. If you break 1st layer during rolling then the fat layer may bleed into the other layers creating a more crumbly and less flaky crust.
Make sure to temper the eggs before adding them to the hot mixture. When mixing the eggs with the warmed pumpkin mixture, whisk vigorously to prevent the eggs from turning scrambled. If you are unsure, you can always wait until the pumpkin mixture has cooled a little bit before mixing it with the eggs.
See storage instructions in blog post.