OK, here's a shot today of my Musa x sikkimensis 'Daj Giant':
Leaf closeup of 'Daj Giant':
Pseudostem closeup of 'Daj Giant':
And a shot of my Musa x sikkimensis 'Balboa Park':
Leaf closeup of 'Balboa Park':
Pseudostem closeup of 'Balboa Park':
Side-by-side:
The leaves of 'Balboa Park' have some red markings on the leaves, whereas 'Daj Giant' does not. Also, the red midrib has faded quite a bit with my 'Daj Giant', while 'Balboa Park' still has a prominent reddish-purple midrib. Both have waxy pseudostems. They are very similar, but have a few subtle differences. Clearly both have M. sikkimensis as a parent, but who is the other parent? Possibly M. balbisiana?