5,184 Spliced Surprise Maximus (4 methods)

Donald F Morrison (no. 6994)
 23456   W  M  H
 64352      -  -  YCZ.YZBC.
(36245)  -  -     BZB.ZB.
 24365   -    [-]  Y.CYCYC.
Repeat five times, omitting [-]
from alternate parts.

Contains 1,440 each Cambridge and Yorkshire and 1,152 each Bristol and Zanussi, with 107 changes of method.