bigmike11's question indicates that maybe someone needs to explain the quick change system a little clearer.....so I made a video that hopefully will answer
some questions.
But first....... the parts you'll see in the video, required to feed using the two methods, (1--using a spring tube....or 2--using Lee's 9/16" diameter thin-wall clear tubing).
For both you need to mount the "APP_Bracket_Main"......the common link. In the video I pointed to the nut required above the Lee casting (see thumbnail in the post above).....below the Lee casting, you normally secure it with another nut below. but rather than just tighten it with a nut below, I added a coupling nut combined with a wing nut, to tighten the Bracket to the casting. The reason for all that was ease in putting it together and keeping it tight....without having to kneel on the floor under the bench, and use a wrench on it. For me that was a pain, so I made it easier for me.
The video shows both feeding methods: The springtube method requires 3 parts: the brass (or bullet) insert, the APP_Spring_APP_Insert_Medium (or large or small depending on what you are feeding) and finally the Spring_adapter_xx, (the part screwed onto the springtube....."xx" is the size).
The other method just uses Lee's 9/16" clear thin-wall tubing dropped into the caliber insert down tube.
How you connect either feeding method to a collator is another subject. Obviously if you are just using lee's shaker collator, you just add it above the clear tubing. Electric collator's to spring tubes are a little more complicated but does allow more leeway on where the collator can be mounted.
https://youtu.be/T8c6ORTPeZ8
Note: in the video I did not shove the insert all the way into the middle part....just so you can see the caliber I was demonstrating with.
Also, on the .223 and .308 inserts shown, I highlighted the recessed caliber ID numbers with a white "Meanstreak" gelled paint stick cleaned it up with mineral spirits just so my tired eyes can see them easier. But such is not important to function, so ignoring such is more than okay.