SparticleBrane:I can't say I've ever had an issue with my DS4s and Al80s doubles with my 38lbs Agir wing and a Thermo manifold...
Have you ever experience the air on your right side won't shift to the left side easily even you tilt up a bit? My hose tends to press into the upper channel of the wing thus restricting the air find its way to the left side (after I dump the air via the bottom left dump valve). The only way I can achieve that is to lean right (trying not to mess my trim) and listen for the air to shift left.