  We construct four-center bubbled BPS solutions with a Gibbons-Hawking base
space. We give a systematic procedure to build scaling solutions: starting from
three-supertube configurations and using generalized spectral flows and gauge
transformations to extend to solutions with four Gibbons-Hawking centers. This
allows us to construct very large families of smooth horizonless solutions that
have the same charges and angular momentum as supersymmetric black holes with a
macroscopically large horizon area. Our construction reveals that all scaling
solutions with four Gibbons Hawking centers have an angular momentum at around
99% of the cosmic censorship bound. We give both an analytical and a numerical
explanation for this unexpected feature.
