Thought I would start a new thread regarding Burkhard's use of a Sennheiser Lav mic rather that diverging the topic on Tuning with a contact microphone.
Thought I would give this a go but only have a Ipad with a lightning connector so I bought a Pixel Finch Lav Mic, also got some new rubber wedges hoping they would be big enough. Unfortunately the wedges are not as chunky as Burkhard's. The diameter of the Finch Lav mic is around 9mm - 10mm. Is the Sennheiser XS Lav USB-C a similar size.