Cubies crush it on racks yeah, but only if you’re running RELIM’s rotationally molded HDPE-check the ’23 ASTM F1140 drop tests, they laugh at 10ft impacts while TPU bladders (MSR’s dirty secret) hit viscoelastic creep limits in under 200mi per that Arxiv preprint on polymer hysteresis under cyclic loading. Stacked my 6gal pair on an 80-series for the RTT roof, gravity-fed the stove clean for 3 weeks no slosh. Bladders? Physics says nah, they’re for Eurotrail posers who pack by weight not reality. Simon3a vets know.