So I am a guest at the ZRH SEN Lounge multiple times a week - ever since they introduced the electronic card in the M&M app I do not carry my SEN card with me anymore. Never had any issues getting into the SEN Lounge.
A couple of weeks ago they even stopped asking to see the virtual card when I
proactively told them "it is a LX card". I even tweeted about it and got a nice reply from Swiss (
https://twitter.com/swiss_flyer/stat...14677108523012)
Same thing applies for VIE Lounges by the way!