Chutescoop has worked great (I've used an ATN too)
We have a Chutescoop on our current 47' boat and I had an ATN on our old 38' boat. When I ordered our new a-spinaker a year ago from Neil Pryde, the quote included a Chutescoop. After I received it, the only difference I saw (based on my memory of the ATN) was the ATN had a fiberglass "ring" at the base vs. a stainless ring for the chutescoop. The ATN "ring" was wide and angled to (I presume) help capture/funnel the sail while you pull down on the sock to collapse the sail. I recently read an article in Practical Sailor that quoted Neil Pryde as providing a Chutescoop with a-spinakers on boats up to ~45' and an ATN for larger boats. I called Neil Pryde and they said for my boat (a Beneteau 473) they always provide the Chutescoop given the size of the mast and sail. By the way, Neil Pryde provides all the Beneteau OEM sails so they know the boat extremely well. Bottom line, we used our chute about 6 times this season and the Chutescoop worked great - no problems at all. I would save the money.However, on my old boat I had a regular sail bag for our chute and this time I ordered a box launch bag. This makes a huge difference in my opinion. With the regular sail bag, I was always getting things tangled. With the box launch bag designed for spinakers, each corner is velcroed to the bag and the entire bag sits nice and neatly on the foredeck. In my situation, after I've collapsed the chute with the sock, my wife lowers the halyard slowly while I "fold" the chute into the box bag and then secure each corner with velcro and then close the top of the bag - all organized and ready for the next launch (just like the racers!).