Just wanted to share an update.
I've currently got 5 bunches of Dwarf Orinoco and 1 bunch of Dwarf Brazilian. Several other DO's are looking suspiciously close to throwing buds, as are my Gluay Kai, Cocos (Dwarf Gros Michel), and SH-3640.
Here are some assorted pics. The 1st one is the Dwarf Brazilian, which I've transplanted 3 times and pruned/chopped back several times (thus the small bunch); it's only about 5' tall, but it's also buried 2' deep in the ground, so it's actually 7' tall from the top of the corm up.