I will update pics during this week.
Pearl Eliminator has 4 cams and these are plastic, so it is very light from that perspective but hammer is heavy. I used black cams (and short periods red cams... ), which are shaped very basic. That was one point to select Speedcobra as movement looks similar to me.
After second session today, I got very good feeling of my new pedals. Will be adjusting still springs, but basically they are now good for me (And ordered spare pair of nuts and springs already). I will probably keep Eliminator at home for learning purpose... They seems to be selling old twin pedals very cheap in Finland at least, because of worn u-joints etc.
One detail I noticed also is my joint angles of link shaft... and slightly moved BD for easier, very light angle for joints. Both ends should have quite same angle, I think...