  We have recently presented a Regge description of pion-pion total cross
sections valid above 1.4 GeV, consistent with the few existing experiments,
factorization and crossing symmetry. In this note we show how it also describes
a further large data sample obtained from an analysis of experiments on
$\pi^\pm p\to X\Delta^{++}$ and $\pi^\pm n\to Xp$.
