Pretty much what @TallSkinnyGuy said, but we don't bundle ours the same. The directions for the E-Z slalom are a little confusing because they group 3 sections by number as well as specific arms by number. So there ends up being 3 sections total and 5 numbered tubes total. Putting a section together on land is definitely the way to go, it helped us a lot! Also trying to keep the course taught as it goes in also helps at the end when setting the last anchor. Honestly I've never given using a pontoon a thought after trying it in the tow boat, Its nice being close to the water on the rear deck when setting the arms down into the water.
As for anchors, we use these with 4ft leads and they work perfect in 25ft deep water with muddy bottom. The flukes probably help but we've never had to tighten it. We use it like you will be, only in when in use. Have fun with the course!