Like I alluded to above, the little plunger that presses the primer into place can be adjusted with a simple disassembly and a bit of sanding/filing. As I recall, there's a C clip that holds it together. Remove that C clip and it comes apart. Sand the bottom of the case a bit at a time until it's seating your primers as deep as you want.
A major motivation for the new press, besides spending less time reloading, was to be able to use a powder check die with 357 Mag cast bullet loads. I can't see the powder in the case with the LCT. I used mirrors, lights you name it, I just can't see. It's like trying to see coal dust in a stove pipe at night. There is no way that I will seat a bullet on a case without knowing the powder level either by seeing it visually or using a powder check die. Preferably both.
I had a powder measure fail. It was damaged in a move. Initially at the setup check, it threw accurate charges and then suddenly, the charges were all over the place. A part was damaged internally and eventually failed. The powder check die caught it immediately. If not, at best I had a squib, at worst I wouldn't be around to write this post.
With the 9 mm or 45 ACP it's easy to see the powder and verify the load. Many loads listed for 357 Mag cast bullets are light. On a single stage this would not be an issue. Powder is dispensed in batch and with a light over the tray its easy to see an issue. Not so individually on a press. Can I try bulkier powder? Maybe, but my load is very accurate. If the Hornady press worked as advertised, powder level validation would not be an issue. I would also spend far less time reloading. The less time the better. I like to shoot, not reload.
The press seems to work for my 9mm loads at least for now. But the light strikes with the 357 Mag is unacceptable. I will have to size and prime off the press for the 357 Mag if I want reliable ammunition. I'm back where I started. For some the press works fine, others not at all. I just landed in the middle.It depends on the individual press, the components and luck.
The problem is Hornady saying flush is good enough. It's not if you want reliable ammunition. Slightly below flush is more generally accepted even by the powder manufactures. To go below flush you are own your own. There are many posted fixes from using coins, drilling and grinding to shims. Some are major surgery and would certainly void any warranty. There is no guarantee the fix will even work. Why this is not addressed by Hornady is beyond me.
I was aware of the aftermarket kit for the Dillon 650 to make priming more on demand. There are also kits to help with powder spillage. Both seem simple to install and seem to work. Why doesn't such kits exist for Hornady? There must be a reason since the need seems large.
I didn't intend for this to become a blue, red, green or even brown debate. I'm just relating my experience and venting my frustration of being abandoned. 76Highboy, who was one of Hornady's strongest cheerleaders on YouTube, felt the same way and was driven to bluer pastures. At least I'm not alone.
Ultimately, I have no one to blame but myself. I rolled the dice and lost. From reading a post above, I'm just glad I didn't buy a RCBS progressive. It could be worst.