Float test is notoriously unreliable. It's better to use the one where you slide your fingers from end to roots. If it goes right up (and possible squeaks), it's low porosity. If it has a lot of bumps, it's porous. In between is medium.
3a (Corkicelli), highlighted, fine, low porosity
modified CG, since April '07
CG since 3/11/08
HGs: Curly Kinks Satin Roots, Curlycue ReNew and Coil Jam; homemade FSG and okra gel; soap bars; DM MiraCurls Curling Gelly; UFD Curly Magic; Shescentit LIs; Sevi conditioners; Botanical Spirits Puree, CJ Repair Me