I am a brand new user of the Lee CTP and I like it a lot. I've loaded almost 1000 rounds with it and as long as I understand the inherent loose tolerance of the turret in its' stanchion, I can account for that when I set up my die(s).
About an hour ago, I sat decapping about 200 38spl cases, and then 50 40cal cases. Switching between the two calibers was literally a 15 second job.
When I was done, I found a stray few 38 cases in the corner and switched back again in even less time. No die adjustments were necessary for either turret swap, and that is a beautiful thing.
BZimm