Given the ten-million round reliability of the SST in the Citoris, a double trigger sure wouldn't be a necessity, but if you want to pick barrels by picking triggers, why not? Gun is the design successor to the Superposed, Both the "twin-single" and a simple double trigger were available on early Supers while Val Browning debugged his SST design. Putting a 600$ trigger conversion in a 1200$ gun would have to be more than a matter of "style" for me!

jack