The co-ax comes with an enclosed primer catch system.
It is also made in the USA.
I can’t say I have ever needed their customer service so I’m not sure about this one but Dillon has set the bar pretty high for everyone.
It has 5 stars from midway reviewers and more of them at that.
Not sure about 8&9 as I don’t have the press mounted high enough that I have to life my arm that high, even while reloading sitting. The press also has enough leverage you can use the short handle for just about everything. You can also get you hand close enough to squish your fingers if you want to, the handle is only 3/4” wide and swings in a arc, as large gn as you hand is not in the way of the handles path you can have it as close as you want.
A turret press is as much of a “semi progressive” as a 550 is not a “true progressive”, a progressive can perform operations on a number of cases using a number of dies with a single stroke.
The shell holders for the co-ax are somewhat universal, you can see how fast caliber changes can be done in the video I posted in #7. You couldn’t do what is shown in #7 as fast with a turret even if all the dies were installed in the same turret.
If you stand, you have to bend down in order to operate the press, if you sit in-front of it, you have to raise your arm above the shoulder height. I had ergonomics classes back in college, this design would be a no-go in any ISO certified manufacturing plant in Germany because it will wear down workers / users.
I put "semi progressive" into quotation mark for a reason, never claimed it to be truly progressive, and you know that. I still turn the turret faster than you will switch dies back and forth. And don't tell be you keep 3 or 4 dies in your other hand at all the times.
And who changes calibers with every case? Nobody.
I can even see how your hand hits the frame when entering a new case. That gets hold aver a couple hundred cases. Not enough room to work.
8:21 to 8:41 one fully loaded round. Try that with the co-ax for an hour switching dies. Good luck with the powder hopper on that press / having to pull out the case for an externally mounted hopper.
View: https://www.youtube.com/watch?v=a3R7PkPklUM