I'm setting up my Lee 4-hole turret press. I am a complete novice and will shortly be having a lesson from a very experienced chap in reloading before trying anything stupid myself (first off will be .38/.357).

In the mean time though in advance of the lesson I'm curious how critical the height setting of the dies is aside (of course) for the bullet seating die? I'm just sat here wondering whether to tighten any of the lock rings. I can set the bullet seating die with a dummy round, but am wondering how to set the height of the other two dies.

It doesn't matter in that I can adjust them when the time comes, but am curious for now.