Hiya mate, I would say both. Before drying, I strip my girls of wind leaves and larger sugar leaves. Then, after drying, I trim the tiny leaves that remain. For me this is a good method of trimming + these little leaves taste very good as well :D
I do dry trimming to slow drying process with leaves on it helps chlorophyll continue to be leached from plant producing a smoother smoke. Same reason I flush as well and do 48 hours darkness. Good luck and happy growing