[CAluvdubya]

single stage seems mighty slow to me. We had no problems starting with the Dillon. Got a 550B for DH in 2011. We are on the perpetual search for primers at this point...

[AnAmericanMother]

I'm glad you had no problems - but I still couldn't recommend a progressive loader for a beginner. Too much can go wrong and the consequences of a moment's inattention (empty powder measure, skipped primer) are profound (and can cost you a stage when you have a misfire in a Combat or Cowboy match).

Single stage IS slow, but it allows you to cast your eye over the loading block to confirm that all primers are seated, powder is the same level in every case, etc. With practice, you can get more efficient too.