5,184 (5,016) Spacehopper Little Surprise Major

Donald F Morrison (no. 4631)
23456    B  F/In  W  H
23564    -           1
64352   In,B,V,V
65243  (In,F,B,V
52643     In,V
26543     In,V
23645        4)   1  1
34256    -            
Repeat twice.

Reduce to 5,016 by replacing the parenthesized calls, in one part only, by: In,B,M,F,B,W,H,B,V,M,M,V,V.
Either arrangement contains all 24 56s, and 12 each 6578s off the front and 8756s off the front, with no backstroke 87s.