Zuzu, Violet's Pride caught my eye too, and Tropical Lightning is really special!
Margie, that is exactly what I suspect is happening. Those tallest canes aren't showing any sign of producing flower buds, but keep reaching for the sky! The canes I left that have buds are much shorter, about 6 or 7' tall.
For the corral I'm thinking I will fashion something like a giant tomato cage.