Since I'm in the market for an Anglo a step up from the Rochelle I inquired and received the following reply from Concertina Connection:
"The Minstrel is the economy version of the Clover, it has standard bellows, instead of the Wakker bellows, delrin buttons (vs. metal capped traditional), it has the same reeds and action. The performance values (airflow, dynamics, harmonic spectrum, etc.) is comparable to all the hybrids out there, but at a much lower price.”
Promising indeed.