Well, I could be wrong, but.........
it is lever actuated, and that certainly isn't a disqualifier for a trimmer; I watched a fellow do some neck turning w/it, but I wouldn't turn necks w/it. One thing to take into consideration, lures are made to catch fishermen, and this stuff is designed by engineers to catch reloaders, & make the company a profit so they can stay in business. Maybe someone else that has more experience with the machine, & perhaps has done some meaningful testing over time will weigh in with their thoughts. Just re-read, "benchrest quality reloads". Well, I know many people have different definitions of that, too. If "benchrest" means resting the rifle on a bench while firing it over shot bags filled w/sand, yeah, it'll do okay. But I'll bet if you go to a few(3-4) matches & watch what goes on, & sit around w/your ears open & your mouth closed, just listening, you'll probably have answered your own question. Without more info from you, I don't think I could give you a better answer to your question. Based on your list of tasks performed, it sounds like you don't have a lot of time. Few now do, but it may help you to do what you need to do in batches, as in size everything you need to size one night while the tumbler's running on pistol cartridges; then, next night you do clean-up & de-prime & re-prime, See what's going on here?? Then, next night, you charge & seat bullets. Its also handy at this time, if you have a small child that can still sit on your thigh for a few hours without putting it to sleep(your leg OR the child), even if they have to sit on some plastic draped over the leg, in case of accidents; because, by assigning the child small tasks you can perform together, it gives the child early exposure to concentration, responsibility, and postponing gratification, which gives them early maturity & discipline, which will help them not only in the shooting sports, but life in general. Plus, the ol' woman won't jump in your hindparts, because there is ongoing father-offspring quality time & bonding....and, it gives her a break, too, if she'll take it. Sorry to go around the bush like that & I hope you got some benefit from it, because it just goes to prove......there ain't no simple answer, right??