Minimus Variations

These are based on other plain methods, constructed by swapping a pair of bells over and back again (sometimes twice). This means that one bell still rings the parent method, but the paths of the other two bells are different, each a reflection of the other.
Note that some of these variations can also be obtained by splicing the plain methods together.
On 15 November 1969, a peal of 9 methods and 88 variations was rung at Woodborough (Nottinghamshire), but I haven't seen details of any further names for them.

Based on Single Court. In each case the 4th rings Single Court.

Swanpool Court - rung at Lincoln (St Mary-le-Wigford), 8 Sep 1970 (RW 1970, p. 877)
Dunholme Court - rung at Lincoln (St Mary-le-Wigford), 8 Sep 1970 (RW 1970, p. 877), quarter peal rung at Lincoln (St Mary-le-Wigford), 9 Dec 2017
Ermine Court - rung at Lincoln (St Mary-le-Wigford), 8 Sep 1970 (RW 1970, p. 877)

Based on Reverse Court. In each case the 4th rings the parent method.

Reverse Swanpool Court
Reverse Dunholme Court
Reverse Ermine Court

Based on Double Court. Again the 4th rings the Double Court.

Steeping Court
Reverse Steeping Court
Double Steeping Court

Based on Plain Bob. In each case the 2nd rings Plain Bob.

Boxford - rung at Nottingham, 18 Mar 1970 (RW 1970, p. 1028)
Ufton Nervet - rung at Ufton Nervet, 20 Jun 2015
Higgledy Piggledy - rung at Stanford Dingley, 31 May 2016

Based on Reverse Canterbury. The 2nd rings Reverse Canterbury in each variation.

Dorton - rung at Woodborough, 29 Mar 1970 (RW 1970, p. 1028)
Lismore - rung at Lismore, 11 Dec 2015
Topsy Turvy - rung at Stanford Dingley, 31 May 2016

Based on Double Bob. The 2nd rings Double Bob.

Guisborough Bob - rung at Lincoln (in hand), 13 Feb 1976 (RW 1976, p. 229)
Double Wooly-Back Bob - rung at Lincoln (in hand), 13 Feb 1976 (RW 1976, p. 229)
Chaotic - rung at Stanford Dingley, 4 Jul 2016

Based on Double Canterbury. The 2nd rings Double Canterbury.

Stanford Dingley - rung at Stanford Dingley, 31 Mar 2012
Brimpton - rung at Stanford Dingley, 4 Jul 2016
Chaddleworth - rung at Stanford Dingley, 4 Jul 2016

Based on St Nicholas, which is rung by the 2nd.

Spirolux - rung at Grantham (in hand), 22 Nov 1975 (RW 1975, p. 1045)
Barkham - rung at Stanford Dingley, 4 Jul 2016
Newtown - rung at Stanford Dingley, 4 Jul 2016

Based on Reverse St Nicholas, with the 2nd ringing the parent method.

Reverse Spirolux - rung at Stanford Dingley, 31 Mar 2012
Lower Basildon - rung at Stanford Dingley, 4 Jul 2016
St Denys' Pleasure - rung at Stanford Dingley, 4 Jul 2016

Based on Reverse Bob, with the 4th ringing the parent method.

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Based on Canterbury, with the 4th ringing the parent method.

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There is one other variation, which also affects the treble. This seems to be based on Dorton or Reverse Canterbury, with the 3rd mostly in the hunt.

St Swithun - rung at Woodborough, 11 Jan 1970 (RW 1970, p. 153)

Method diagrams from Method Printer, by Martin Bright.