Does anyone know why the UK has been left out in the cold with the now not so new “B” version of the 550/600/700 tail rotor holder? The US has had them for months! My 600 tail is ok but my 550 has loads of play and I don’t want to spend money on old tech. I’m just about to order a few sets from flea bay unless someone has news of their arrival in the UK. Just my luck they will come in stock the day after I order them from China.