My .357 sits neatly in a chest holster and remains accessible quickly whether wearing a backpack burner, sprayer, brush cutter, or when on my knees weeding. The problem is the extra weight after being bent over all day.
The FN 1900’s weight is shown as 1.4 #. Don’t know if that’s with a full mag or not. I often get back from the ‘other side’ to discover it in my pocket.