one sponge that works great for rinseless/traditional washes is the lowes proline tile & grout sponge, they are discontinued but some lowes still have them in-stock. besides that, the megs microfiber wash mitt or microfiber covered bone sponge works great as well...
how do you use the bone sponge for rinseless? sweep with one direction? gentle back and forth motion?
And do you rinse the bone sponge after every panel?