Lee deserves a certain amount of bashing, but don't forget to carve out a spot for the classic cast turret, which is respected, popular, and very versatile.
p.s. I see nothing that begs improvement on my breech lock cast single stage. It has an adapter to accept Hornady LnL adapters in good supply with my LnL AP. The insert for standard threads came with it but is in my unused parts box.
The Classic Cast SS is moderately okay. ...Until the linkage breaks or the adjuster teeth strip.
I've used the LnL system, too.
Don't like it, either.
My first exposure to it was when my brother got a LnL single stage press. He kept having collars and the adapter chip or break. Hornady told him it was a known production issue that had been fixed, and sent him some replacement parts.
He had no more issues.
I came across a very cheap offering of the Hornady conversion 'kits' with one LnL conversion bushing and three collars. I bought many. It was FAR cheaper than buying bushing packs, alone.
They started chipping, breaking teeth/lugs, and wearing loose with normal use.
About the time I decided that they were about as useful as a bag of fermenting diapers, my brother told me that he had had another failure. He didn't just chip one lug, but sheared ALL of them, while sizing something trivial (like .40 S&W).
At this point, almost all of our collars and adapters have at least a few chips or chunks missing - some have one or more entire tooth/lug missing (which renders them useless for anything requiring any hint of precision). Mine are piled in the back of a drawer, never to be used on my dies, again.
Decent design, poorly executed.
PS: I've got a whole pile of collars and adapter bushings here, that I'll give you a great deal on!