Glad to hear you are having some success with Patupi!
No bloom here, but I was finally able to get consistent growth. My tap water PH was probably killing my plant last year. My water PH is 8.5 so I've been adding a small amount of sulfur to get the PH below 7. I had no dieback with my pup this winter and I think that is why.
I also switched to a 15g air pot so over watering is less of an issue. This will probably be the final pot for the plant (i hope).
My pic is below. The nice red coloring is starting to show.
<a href=http://www.bananas.org/gallery/showphoto.php?photo=63177><img src=http://www.bananas.org/gallery/watermark.php?file=63177 border=0></a>