dies neck or full length

[Cossack]

I've run the gamete from FL sizing to neck and back again. Can't see much difference in accuracy. Case prep and die allignment seem to make a bigger difference than sizing per se. Case life seems to be about the same. Pressure seems to be a bigger factor in that regard. Neck sizing using a FL die with expander plug seems to work the brass about as much as FL sizing. So, if you do go the neck sizing route, I'd suggest the Redding dies without expander plug and bushings to work brass less and assure straight neck alignment. But you'll still need to set the shoulder back every so often. You'll need a FL die, I've also used case forming dies for some of my wildcats for that purpose. and even trim dies.
Been hearing a lot of blow about RCBS X dies and Lee Collet dies being the cats meow to avoid case stretching but lack personal experience. Perhaps some of the folks will wade in on that topic.