Methods on small numbers Minimus ringers ran out of new methods to ring for which a single extent was possible. They then started exploring methods that comprised multiple extents. Great Massingham TP Minimus is an example. While it is false within each lead, the plain course contains exactly three extents, so is true - making it easy to ring true performances. Methods like Bristol Minimus (now Demi-Bristol Alliance Minimus), which has been rung at least since the 1970s are trickier, since the plain course is false - while containing one extent, it contains multiple rows from more than one other extent. Nevertheless, that can be rung in true performances by varying the hunt bell.
On higher numbers, methods inadvertently false in the plain course were created as link methods in spliced. The methods are generally rung a lead at a time, and in combination with other methods form true peals. The former Methods Committee of the Central Council came under much criticism for introducing a concept of non-method blocks to describe them, when it was much more straightforward to remove the rule that said that methods had to be true in the plain course. The Framework for Method Ringing, implemented in 2019, did just that.