A 550 is manual index. I run my rifle rounds through one at a time, inspecting each step. Pistol rounds get cranked out and I can pull one from any stage I choose for inspection.
Don't get me wrong I am not saying anything bad about Dillon. I learned how to reload on a 1050. It was great. I got some Lee equipment and l learned how to work with it. I did some tweaking and changes and understood how to run it. Then I got some more presses. I have one for each pistol caliber I shoot, one for 223 and Classic turret press for big rifles. I enjoy reloading as much as I do to shoot, they go hand and hand. Like I said it works for me. Find what works for you and use it. If I see any Dillon or Hornady equipment cheap I will buy it. There is always room in my gun room for more.Good for you...
" I like to make sure of what I am doing."
^^^
And THAT'S Exactly what you get with Dillon!
I have had a Dillon RL550 for over 40 years + still going STRONG.
Dillon tools are mostly MACHINED parts, set screws, and EXACT fitting parts==Lee not so much.
If a person likes to screw with bead chains-plastic -and loose fitting parts than Lee is for you...Bill.