I put a case in my Lee Classic turret and 4 pulls later it's a finished round. I wouldn't use a powder I couldn't check "on the press".
Me too Brian. With .380/9mm (or even .32 Special) cases I find I can see pretty much any charge just by leaning forward a bit or parking myself right up next to the press (I use a tripod Lee Press Stand) but every charge I throw for .38/.357 requires a bit more straining/stretching to see inside the case. Most times I pull the case out, check the charge visually and put the bullet in place off the press, just to save the back. It is amazing how much time that little step costs me. Better than not checking though.
I really need to break down and rig up a light/mirror setup like some other folks have.