As a follow up on the Lee FL die, I took my Dremel and with a small grinder, enlarged the die neck to clear the case neck. It's now a body die with decapping/expander stem removed.
I checked sized cases. Some are pretty concentric, some aren't. With a very tight neck and hard pulling expander, cases thinner on one side ended up crooked, those with more concentric construction remained straight. That's the only explanation I can come up with, as they were all handled exactly the same. Not much difference, Rem. vs. W/W.
I'll load the crooked ones and straighten them as much as possible with the Tru Tool. Once fired, the Collet Neck sizer should keep them concentric.
DF
