I find it rather annoying when somone asks a question about a process or how to use a specific tool and somone comes along and tries to turn it onto a "this product is better than that product" thread.
Your question was a bit more broad that "how to use a specific tool". There are a large number of common elements to using any progressive. That said, and having spent a large amount of quality time with almost every progressive except yours and the 5-station ,,,,uh,,,the red one from the lock 'n load guys... here goes a post RESPONSIVE to your question.
Inspection--I start when I pick the stuff up. Quick check on casemouth and body scratches and flat primers. Any doubt, throw it out. Next quick inspection is when I pull them out of the tumbling media, but tumbling is generally once at the beginning of a batch of brass and not done again.
NEXT inspection is when Igrab them from the bin and get ready to put 'em in station one. Same routine, but the "inspection" includes how heavy the sizing resistance is (sudden increase can be overblown out brass), AND the primer seating resistance...too little means expanded primer pockets and I don't want those, either. Found one last night, in fact.
I'm not big on cleaning primer pockets, and will typically do it, if ever, only at the beginning of putting a batch into service. Have had only two batches ever need it anyway (one rifle and one .357 mag).
The roll crimp on .357 mags requires, as you know and is lost on some posting above, uniform case OAL. When I first put a batch into service, I trim them all (recently went to using the "nominal" rather than "trim to" length), which allows the detailed inspection you seem more accustomed to. THEN, I just keep the brass segregated by number of times fired since the trim. I'm on reload #3, so haven't re-trimmed yet and doubt that I will before retiring the stuff.
With some, I crimp on seating, but the .357 is one where I crimp on station 4. It really doesn't seem to make much difference when using uniform brass.
Taper crimping auto pistol cartridges is no problem, and I load boattails on rifle so there's no flare to remove anyway on my match loads. I will crimp FMJBT loads, and toss 1-2% that are long and get shoulder-bumped--which illustrates the next inspection stage--EVERY STROKE OF THE PRESS. I can usually feel the difference between a stiff resize and a long case buckling under the crimp die, and just toss the bad ones as they happen. You come to know by handle position whether it's a cocked bullet on the case mouth or the station one case mouth hanging up on the bottom of the size die (most common hangups).
Last inspection is when I pull them out of the bin, loaded. Case neck splits can show up there, unless weak resistance to bullet seating alerts me early. Many of these "reject" moments are nothing more than noting what position and then pulling the case out when it cycles around to the kickout position.
If you insist on decapping before inspection and trimming and want to clean primer pockets, you can do the first batch super-slow and do those steps after each resize and before putting 'em back in to advance the system. If everything is close, it can work. An efficiency expert would say batch process them through decapping, clean pockets in a batch, trim them all, and then go back to the progressive for a straight run-through. After that, load them 5-6 times without all that ritual and you should find your ammo behaving just fine.
This applies to RCBS Green Machine, Dillon 550 and Square Deal, Star loaders, and the Lee Pro 1000. The auto case feeds on a few of these will prevent the cumbersome resize/case processing/resume stroke approach.