Thank you, Jocelyn -- Perhaps the CW of pot size isn't all that rigid, plus using rainwater and sparing amounts of organic gertilizer such as this
helps me to get away with violating it. Anyway, I can go off on holiday without wondering if my AV will survive my absence.
I have a supply of rainwater in the garage in two green barrels set aside for all our potted plants. Rainwater --or melted snow water-- extends the life of the potting soil.