I was never convinced by the 'bonk' on the Lynx because it was only optimised for one Nr and one stage of flight (cruise flight IIRC) which was not much use for hovering where the vibration was often worse because of the higher pitch settings. The bonks were leftovers from the appalling WG30 or so it was rumoured.
All AW manufactured helos vibrate and leak, why should the Wildcat be any different?
The undercarriage on the new wonderlynx doesn't look very dust-landing friendly - I won't be surprised when the first one is rolled over on an operational landing - not the first aircraft with a high C of G and a narrow undercarriage to suffer this problem - dynamic rollover anyone?