the Prof has an excellent article on the subject which I read last night in the bathtub. (my favorite place to read anything in print) … I know, too much info.
anyway, yes I’ve done it and continue to advertise with them on a limited basis which I keep cutting back on all the time where as if I really thought it was a profitable approach I’d be on it big time increasingly.
its a fickle situation at best and i agree with Dom, there are a few who have it down to an art but I feel confident that their art don’t pay like you’d think looking from outside the window inwards.