A 5th, composite பா type: a verse that mixes வெண்பா and ஆசிரியப்பா characteristics within the same poem rather than following either purely.

A poem that opens like a steady வெண்பா and then slides into an ஆசிரியப்பா-like flow partway through isn't a mistake - it's மருட்பா, doing exactly what it's meant to.

A single poem shifting between வெண்பா-like and ஆசிரியப்பா-like passages.