Made this today... And all I can say is holy stuck mash. Was totally worse that I expected given the stuck comments here. My mash stuck so bad I could barely recirculate. In fact, a the grains/pumpkin sludge created such a thick mass that my pump pulled a vacuum though the sight tube and put air under the grain bed!!
Not sure what really went with wrong but I realized I forgot to add the hulls first, so they went in after the grain, then the pumpkin went in. This was a 7.5 gallon batch so perhaps the extra weight of the grain didn't help.
I had to stir throughout the mash, so I have no idea what my real mash temp ended up being. And I am sure I am going to need additional finings later to clear it up. Hit the numbers otherwise, so I will have beer. Just don't know if it will be sweet or dry.
-BD