Since the Ika works well fished backwards. Has anyone tried a tube rigged backwards? I thought it may work, but I am not sure if the hollow tube would fall right. Just a wierd thought. Maybe you would need to modify or put something inside for weight?

If it falls differently because of the weight, you could try these. Never tried it, but it could work.

since the old flying lure fad, i have done lures backwards using nails inserted into them. im sure with a tube you could jam a texas style weight into the tube and run a wide gap hook backwards.

You can also rig the tube the normal way but make it fall backwards by using a small bell sinker.  Rig the tube normally, but when you put the point of the hook through the open end of the tube pass the point through the brass loop on the sinker then skin hook it like normal.  The weight will be on the back end and secured by the shank of the hook.

Try inserting a gulp sinking minnow 3 inch in your tude and you can hook it any way and have scent. I've been playing with it with some success but it hasn't made the team yet.

Garnet

Take a look at this.  Similar to Reb's suggestion:

http://www.probass.com/protips/Articles/bass-ackward.php