. This is it... The little tab (under the scissor blade) is the one that needs lifting to get it apart. If you're fitting a GI this might help. Nick.
Well done el-nicko........ yes they are a bit fiddly......sometimes made worse when you slip with the scissors and stab yourself ! ........guess your installing a GI pro ??
I said a Terminal screwdriver might be the more Pro route to success! Never been a big fan of pressing hard towards me body and other hand with sharp scissors! Blue Peter Boys & Girls!