I use the diminished light schedule because in Nature the days get shorter in the winter, so with that thought in mind I reduce the amount of light to closer emulate this part of the Natural process.
Sun sets 1 and 1/2 min earlier every day during winter so every 14 days I take 15 min of light off.
by the end of flower I have reduced the day By 1 1/2 hrs .
Less to do with Size of Med but the Oils tenpins and Canabidials inside the plant that come up to the bud sites.
Much better Meds.
IMHO
Plus its fun to do.