Perhaps I should have qualified: "incapable without making people go blind counting periods." ;-}   And then there are triplets (quintuplets, etc.). But my aim is not to pick holes in your chosen system--we're happy that you shared, using whatever system you knew of or could devise, and folks like me can translate to more standard formats when needed.

My point really is that "tonic sol-fa" is not a generic family of representational systems (like sol-fa or solfeggio) but a specific system with well-defined conventions. If you use that particular name you should learn and follow its conventions, to avoid confusing others. Otherwise, all's fair.