I used to use that tubing too, but it flies off easily. Last time I secured it with 2 zip ties and it still flew off
Its cause the vinyl pipe expands and becomes a bit flimsy from the heat, I need to think of something better to hold it on the stinger
Edit: I just looked at your pic more closely and see you have the plastic pipe (duh
lol), it will hold on better than on a metal pipe since the stinger has a bigger bore, but will fly off after you take it off a few jumps, other than that I like the vinyl stuff[8D]