I use 1/8 majority of the time. Heavier jig gives me better feel for the jig and the bite. And I can usually get the heavier jig un-hung easily. There are a lot of variables to consider; rate of fall being very critical at times. A 1/8 hand tied with large chenille and full tail will fall slower than a 1/8 with plastic. When I use plastic, I'll use a lighter 1/8. Not all 1/8 jigs are created equal. Finding what the fish want on a given day is key. If they are feeding, the 1/8 will work great and get you to the strike zone much faster, especially if the fish are deeper. And the 1/8 works better for me fishing timber. However, there are days when they get stubborn/finicky and the 1/16 will yield bites when a 1/8 won't. I rarely go lighter than 1/16, and that's usually in the winter on docks. A 1/8 shooting docks will give lots of distance but the rate of fall is entirely too fast. Got to have a good assortment of sizes for these finicky fish.