Just like you stated about the CMA only using certain comps, the CMA is only as good as the information put into it. I just ran some quick CMA's and whether I put in all homes that Sold in Greenfield for the last 6 months, or only homes that were not distressed that Sold in Greenfield or even putting in all similar homes that feed into Rolling Hills Elementary, they were all coming out with an average price in the $350,000's. However I see that your home sits on over a quarter of an acre, that's really nice, you finished your basement if it's a nice finish that's a lot of value, you have mountain views, the Interior pictures from when you bought it, look gorgeous, you have a very upgraded kitchen with granite counters and cherry cabinets, all of these things really WOW the buyer, and add value. The CMA is a very good guideline, but the Buyer's will ultimately be the ones to say if your house is worth more or not. None of us want to take overpriced listings, it's just a bad experience for you and the Realtor. I think I showed the house when it was listed back in 2006, if it's still as nice and the basement is really nice, I would think you should get about $375,000 for it. That's about the highest any of the comparable homes have Sold for in the last 6 months. I hope your Selling experience is a good one, good luck to you and your family.
Another home owner just last week had me do a cma for them, and the value range is about $360,000. It is a St Augustine Model with of course differences. What model do you have. By the way I also live in the Greenfield neighborhood and have lived here about 10 years. If you like we can chat more about it, I have successfully sold Greenfield homes and can give you indepth information about our area.
Are you looking at net sales price (after sales concessions) on those that sold for $360s to $370s ? Have you asked the 2 agents to make sense of that price discrepancy? They should be happy to explain the logic of their CMAs. It wouldn't hurt to have another Realtor look at it all.