SSD(8, 4^4) and SSD(12, 4^4) via Theorem 8 (n=2, s=4, k=2,3)

0 0 0 0
1 1 1 1
2 2 2 2
3 3 3 3
0 1 2 3
1 0 3 2
2 3 0 1
3 2 1 0
0 2 3 1
1 3 2 0
2 0 1 3
3 1 0 2

Notes: (i) The first 8 rows form an SSD(8, 4^4) with overall A2=6 and all projected A2=1.
 (ii)  All rows form an SSD(12, 4^4) with overall A2=2 and all projected A2 =1/3.