I was an EAW dealer for 15 years, and still have several close friends working there, and they make unbelievably good Pivot Mounts, but the Rusan Pivot mounts are indistinguishable from the EAW's, both in materials used, fit & finish and overall quality. I own several EAW Pivot Mounts as well as several Rusan mounts, and really can't tell them apart - except when looking at the name engraved underneath.
Rusan's Pivot Mounts look and feel 99.99% the same as the EAW versions - just cheaper due to overall costs in Croatia being lower than in Germany.
If you prefer the EAW Mounts, then contact Brad at Nordic Marksman - he can help you with the EAW branded Pivot Mounts. And Brad is a gentleman - so great to deal with him too.