Serendipitously I came across a potential solution to the feedback problem: Home Feedback.com that will automate feedback for the listing agent and make your life easier.

For a mere $19.95 a month the Home Feedback.com folks will:

• Let you set up a separate account for each of your listings on their servers.
• When a showing is scheduled you just log the showing agent's name and email into that listing's account.
• The system then takes over and sends an email to the showing agent with a short (7 multiple choice questions and 1 comment blank space
• The system sends a total of 3 emails to each showing agent until they respond.
• When they respond the system sends an email to your sellers (if you tell it to) with the questionaire filled out with a copy to you and also keeps a graph of the answers so if you get the same answer to one question, i.e. "Price too high" the sellers can see that visually and perhaps call you suggesting a price reduction.
• It (the system) also reports on unfulfilled showing feedback requests so your sellers can see where you tried multiple times to work on their behalf but that ol 'other agent' just won't cooperate.
• Another great feature is if something changes on your listing, i.e. a price reduction, you can send out a 'blast' email to everyone that's ever showed it notifying them of that change.

I signed up yesterday and have already used it on 5 showings and got one feedback form already. It's still pretty early to make any judgements about how it will work for me but I'm impressed so far.

21 day free trial if you're interested.