5,120 Spliced Surprise Major (3 methods)

Donald F Morrison (no. 7630)
 23456   M  W  F/I  H
(26435)  -  2   2      YCY.C.B.Y.B.YYY.B.
 46325      2       -   YC.B.BB.
 42563   2  -       -  BB.B.C.CYC.
 64523      -       3  CCCC.YCY.B.B.
Repeat four times.

Contains 1,760 each Bristol and Cambridge and 1,600 Yorkshire, with 94 changes of method, and all the work for 2-6.