Hi, as part of further development of this method, a new shell was constructed with more complex curvature and openings. However, as of yet, not applied on larger structures. If you are interested, do take a look at the works of Felix Candela in Mexico (1950s, 1960s) where he designed many interesting shells. Researchers at ETH Zurich has also explored similar methods this further. A project where this method can be applied will be very welcomed indeed.