They met for the first time at a clinic given by Bert at a musicdealer . They found out they have the same love for Vincent Bach Instruments and their knowledge is complementary.
Rene is a worldclass trumpetplayer and is craving for learning methods from all over the world. Touring around the world with Andre Rieu Orchestra gives him the perfect opportunity to find all these methods.
Bert is working for Conn-Selmer for many years now and knows all the details of the way Vincent Bach is producing his instruments. 

Both think it is not good to misinform players about all wat is possible in material like instruments and mouthpieces and therefore started to do workshops and clinics together. To spread the right gospel.