I shoot a lot of Starline in .38 Super Comp, .45ACP, .45ACP +P, 9MM and .40S&W.
Far and away Starline is better than any of the other brass I use, and I use about everything else out there too. Win, R-P, CCI, Speer, Hornady, Lapua, WCC Nato, ARMSCOR, etc. etc.
I case gauge all the pistol ammo I make and Starline fails the gauge very rarely. Any of the others, not uncommon for them to fail the gauge at all.
The primer pockets of Starline brass I have used are, in my experience, always correct with a moderate amount of force required to seat the primers and abuse required to loosen the pocket noticeably.
I've had very few splits in any Starline cases. Most were .38 Super Comp or .40 S&W that were used many, many times. The Super Comps last until the headstamp is faint to unreadable on a regular basis.
Any loads that are "hot", for SD Practice, or for hunting get loaded into Starline brass.
Any IPSC, Steel Challenge etc. match and practice ammo gets loaded in whatever I pull out of the bucket.
Starline has my business until they change for the worse. No, I don't work for them and am not sponsored by them. Wish I was