If I did the math well this is what we have in DSA:
6 units, 3 stems, 1 center 2 at 40mm from center
6.2 units, 3 stems, 1 center 2 at 50mm from center
7 units, 3 stems, 1 center 2 at 57mm from center
SO
The group buy is probably going to have:
DSA 6
DCS 6
DSA 6.2
DCS 6.2 Universal
DSA 7
oh gosh, what a mess...