Mine is still growing, and has 5 pups, but I can't tell yet if they will be white/variegated/green.
I give it a little less water than the others, and use very liberal applications of composted steer
manure - works as a fertilizer, and as a mulch. With this application, the white areas tend to
green-up just enough to prevent most sunburn. It's not big enough to fruit yet, but still growing steady.
update - now has 9 pups (had 10, but Gabe swapped me a Pisang Masak Hijau for one). Two look white, and the rest are all variegated. Mother plant has a 9 ft p-stem. Looks quite healthy. I use a lot of composted steer manure for mulch & fertilizer.