Wayne - I have not heard of people having those problems with AAs. This problem does occur with Gun Clubs and the resizing does fix that problem. Something else must be wrong. I have an 800+ and love it for reloading in all 4 gauges. What model do you have? I personally consider the PWs far superior to the MECs. However, the PWs take a little more skill to set up properly for your load. The MECs work fine in almost all conditions. First, I recommend you contacting Whiz White:
Jim 'Whiz' White
5308 Timberline Trail
Rapid City, SD 57702
(605) 341-4412 V/F/A
http://www.swsupply.com/
whiz@swsupply.com
He is the best guy in the world on PWs. He regularly diagnosis and fixes problems over email.
If you get totally frustrated, Trapshooters.com or eBay is a good place to sell your unit.
Hope this helps,
Billy Gross