1) Is it possible to use FFDM-1 with Dynon D180 and connect them like just a usual FT-60 'Red cube'? Or there is a special instructions?

2) Do I need to use second FT-60 'Red cube' instead of FT-90 'Golden cube'

3) Even if 1 and 2 are correct and it possible, I wonder about the K-factor, how to calculate it?