Have any of you bartered professional services with SPs?
I personally haven't, although I have found that when SPs learn what I do for a living, they ask me for legal advice on assorted problems that they have in their life. I give it to them, au gratis, with the caveat that I am not licensed to practice law in Canada. I have never had an SP offer to reduce her fee in exchange for such advice, nor have I requested that any SP do so.
I think most SPs want the benefit of the professional expertise of their clients and simply ask for it, figuring they will get it without having to give up anything monetarily in return. How many clients when asked a question in their area of expertise by an SP, are going to say "sorry, you have to make an appointment with me to get that information?" The truth is most guys like to try and show off their knowledge about their business, and SPs know this. Thus I think most SPs don't need to barter for something they likely can get for free, at least monetarily.
N.B.: I see Anik already tried to start a thread on this topic and I was curious about the response. Anik's thread was apparently deleted.