While the hornady has more issues with the priming system than the 650 it still is much faster than running everything through the machine twice. You really have that many problems priming on the press?
I prefer to clean cases between resizing and loading. Gives me another opportunity to inspect the cases. Over the years, I have found plenty of split case mouths and split bodies after the resizing/expanding steps.
I can hand prime 100 cases about as fast as filling a primer tube. Since I separate the process in two steps, no loss in time.
I never, I repeat, never load a case with a miss seated or missing primer when I hand prime. I inspect ever seated primer. Also, I hate re-working ammunition.
One miss seated primer on the progressive per session is one too many in my book. See above paragraph.
The bulk of my stoppages when running the progressive occur at the resizing die. If I run a case from resizing to loaded, this leads to either miss charged cases or extra loss time pulling suspect cases from the press to avoid a miss charged cases. I waste time process the case then running it through again. I do put my trust fully in powder check devices to catch these "oops"
When I do not resize cases while loading,the loading goes slick and quick. No problems at all.
I prefer the case mouth expanding done by the expander die and not the PTX powder drop tube. This step is done during resizing and before cleaning. All of my powder drop tubes are custom made, do not require adjustment of the powder die and do not expand the case mouth.
Besides hand priming, there are times that I charge the cases off the progressive as well. Small cases or very small batches go quicker if I do not bother with the press mounted powder measure.
Even when separating resizing from reloading, I still load more ammunition than I can shoot.
The Hornady with it's die installation works well for me. I place only the dies I need for the task. I can resize 100 cases in less than 5 minutes. I resize and clean cases shortly after shooting then store them away for a future loading session. Goes quick and I do not have a mountain of unprepared cases lying about.
I have two Dillon SDBs and both of them have the resizing die rempved and the priming system removed. The SDB's priming system was no better than the Hornady and I resize the cases on the Hornady. The SDBs are dandy loaders though.
It works for me, it may not work for all.
I have been loading for more than 30 years. I enjoy reloading as a hobby and do not need to crank out a ton of ammunition in two minutes.
Progressive presses can do some wonderful things if you think outside the box and mold the process to your liking and comfort level.