On Thursday, 15 February 2018 10:24:24 UTC-5, Dan Marotta wrote:
When I got my Stemme, I asked my instructor if there was a proper
technique to insert the multi-probe in the nose.Â* He said to just push
it in until I hear/feel a metallic click.Â* That's worked just fine for
the past two years but I wonder if I should lubricate the thing, say
with Vaseline or something.Â* I shudder to think of replacing internal
o-rings.
--
Dan, 5J

Yes, you should lubricate the probe each time but very sparingly. Some people have plugged the openings by being a little over zealous....

Luke