1. Different strokes for different folks.
2. i cannot inspect the primers until after the case is loaded.
3. The progressive press mounted primer systems are not reliable enough in my opinion. Without inspection capabilities, it must be 100% reliable. I gave up trying to make them 100% reliable. I was wasting too much time fixing errant or missing primers.
4. I am not real excited about prepping brass, i would rather do it in small quantities after shooting and store it away for future reloading.
5. While I know all the stories about cleaning primer pockets, it makes me feel better to tumble the brass after depriming. If i feel better about my reloads I will shoot better. Might as well resize the brass when depriming.
6. I find the progressives run more smoothly if you do not resize while reloading. Also, resizing goes lickity split when that is the only task being done on the progressive.
7. i can hand prime 100 cases as fast as it takes me to fill a primer tube.
8. i enjoy reloading.
9. As i said before, different strokes for different folks. It is what makes the world go around.
It is more like running a V8 with a four barrel carb and electing to not open the secondaries.
__________________
Chuck