If I save DNG Smart Previews is there any benefit in having larger than Minimal previews on import?
I don't use 1:1 Previews on import to save disk space (>200GB of images). Lr 5 seems to load quickly
from the lossy DNGs.
1:1 previews are -the- way to quickly compare shots by keeping the sharpest ones. Rendered JPG versions, fully baked, for viewing only.
Smart Previews are mean to work quickly and/or in offline mode. They are a midpoint between a Raw and a JPG, lower res, meant for editing.
Minimal previews are good to actually show something on Grid view, but as soon as you'll be starting any edit, Lightroom will generate a standard preview no matter what.