For pistol, I do a visual inspection after they come out of the tumbler, then run them through a 550b. I find a few split cases, but I've never found any that increased in length. For .44 Mag, I trim everything to a uniform length once, so I can get consistent roll crimps, but then I don't trim again.
For rifle, I cut all primer pockets to a uniform depth, once. I also do the visual inspection after they come out of the tumbler. Then they get lubed and sized/deprimed/reprimed at Station 1 on the 550b. The retainer is adjusted so the case can be easily removed without indexing it around the full circle. I wipe off excess lube, check every one with a Wilson gauge and then toss the case into "Trim" / "Don't Trim" bins. If there are enough cases in the "Trim" bin, I run them through a Giraud trimmer.
Working from a bin of prepped brass, I run them through the same 550b, but I index past the first station before pulling the handle. The first time I did this, it just "felt" wrong, as I was so used to loading pistol cartridges. However, it works just fine. The press doesn't care that you're skipping a station.
There are many ways to reload bottleneck cartridges. One end of the spectrum uses a single stage press and does primer pocket and flash hole prep, weighs every charge and trims every time. The other end of the spectrum trims to under max case length (to allow for growth), sprays the cases with a dry lube and runs them through a progressive. I have had pretty good results with a sort of "middle ground" approach, but I won't criticize the other methods.