my extender modification
I have MB’s vac hanger and vac extender and they are both great. But with the extender I get way to much swelling at the tip so what I did was take the head from the hanger and used a drimell tool to make the end piece of the hangers head (where the string goes to attach the weight) smaller so it would work with the extender. By having a bigger area for the vacuum to pull on there is way less fluid buildup and I can keep it on for hours.