Just grew a Stupice from Victory Seeds. Not even close.

[bower]

Dee and I did a swap one year, to see if the difference in plant size was environmental or genetic in the two 'Stupice' that we were growing. Unfortunately I didn't get to grow them out due to the insane pressure of trying to do breeding growouts in a tiny greenhouse.
Stupice or any of its close /identical relatives makes a great parent for a cross. I'd say it is worth it to save the seeds and give it a try.