Again, thanks for all your efforts.
As Commander Crabbe said, we're all still learning, and what motivated the original post was a fear of having settled into a rut over the years of delivering workshops - if we offer the "critical sandwich", does it come over as a sincere attempt to show appreciation while also giving advice, or will it be perceived as the "canned formula" etc?
I think/hope that Gordeanna and I are tuned in to what our participants are expecting as a group and as individuals, but it never pays to be complacent.
And we want to get this RIGHT, if it's to continue to perform a useful function.

NB This is not a 'Thank you and goodnight' sign-off -- if there are any other good ideas or
      big no-no's, please keep them coming!