I think there is more interest in a board with 1 tec and 4 drivers. Most members are building a quad and for those who are building an octo or they can use 2 boards and have 2 tecs. This is very convinience because if you build an octo with a telescope (beamcombiner) then you have two walls with 4 diodes that both need tec cooling. Hopefully in the future the one from Mccarrot wil have 8 outputs instead of six.