You can kind of see what I did in this picture:
I had on my biggest fish of the trip when I finally tied them on. I took our usual jig, inserted it shy of the nose of the tube, and then tore the tail of the tube to clear the shank of the hook. It worked good.
The heavier jigs do not present the proper action to the tube. You want them to flutter and swim down kind of slow. It takes a bit longer for them to get down to depth but it is worth it. A lot of the jigs I found that looked long enough had the eye coming out the front of the jig, turned 90°, and angled forward. I think it might be called shakey style. With that type of jig the tube doesn't sit horizontal in the water and the knot isn't positioned correct.