Yes, all my exprience is relevant experience in other stat boards. I applied a few MAS positions last year. One is AD/Associate. Rest of the positions are DD/AD. All applications status become "In Progress". But the position (AD/Associate) is the first one to call me for interview.

Don't know how MAS give the rank. A friend, who is Senior AD in a ministry, applied MAS but offered only AD. Senior AD in other stat board and ministry is considered quite high rank, as most stat board DD is division head level. MAS AD is low rank.