i just did this. I took off the spinner and used a toilet flange to mount to feeder. I used a section of 2" pvc and then added a 3" black corrugated flex pipe to the end that has the gutter fitting. this will slow the flow at the ground and let them move it to get more.

It is what it is.

Inspect what you Expect.

Hunting TN, AL, KY, and IL.