Siege

At some point in the future, I will switch to at a structure that uses 1M:2C as a relay, allowing responder to ask for opener's exact shape if he desires (usually with a balanced hand) or revert back to dialogue bidding (with an unbalanced hand with a 5+card minor suit). 1S:2D would show 5+ hearts and be forcing for 1 round only. There are two ways to go regarding 1H:2D and 1S:2H - either they can be used to show a 3+card invitational raise, or they can both be used to show diamonds. The latter option would considerably simplify the relay structure.