Conco-bellatulum x rothschidianum
The only AOS award listed in Orchid Wiz is a reciprocal with 3 flowers and 2 buds, with redder flowers and a natural spread of 14.2 cm. This single blossom (I assume due to the Conco-Bellatulum being the seed parent) is currently at 15.5 cm NS. Behind my hand is a bud on another growth.
I'm not likely to get it judged, but it IS a keeper.
Grown in S/H culture in a 1 quart (~5") pot. My tap water is quite pure @ ~110 ppm true TDS (tested by JR Peters Lab, not mismeasured with a crappy "TDS meter"), of which about 1/2 is added Ca by the town to compensate for the sourness brought about by 25 ppm S. It is flooded about 3-4x/week in the hot, hot summer. I apply ~100 ppm N K-Lite weekly, 1 tablespoon/gal Kelpak monthly (lately, a second time in the month, especially when in active growth) and Quantum-Total @ 1 oz/gal, also monthly.