I'm puzzled by AS, too. Other than a few limited models that can be obtained via Herring (I know nothing of Bowen), it seems impossible to buy AS retail. Buying direct from the AS website looks like something right of the antiquated early days of internet commerce...AFPOS was the one and only source for my five pairs of AS.
I frankly cannot understand the marketing politic of AS, which now is apparently only selling its shoes through the Bowen shops and with that brand - except for a few pairs which still sport the AS label.
I did not check their quality though.