5,120 Spliced Surprise Major (10 methods)

Donald F Morrison (no. 8105)
 23456   B  W  M  H
 35426      2        BBKKB.WY.YCS
 53624   -  -     2  D.EW.K.B.
(62453)     2  -     LY.DLEL.CDEH.
 45623      -     -   C.HHSC.
 64523            -  WS.
Repeat four times.

Contains 640 each Bristol and Cambridge and 480 each Cornwall (W), Deva, Kenninghall, Lancashire (H), Lessness (E), London, Superlative and Yorkshire, with 139 changes of method, and is all the work for 2 through 6.