I'm sorry if it sounds like I'm being really critical. I know you got a lot of flak over the pack reviews, so it may seem like piling on (for what it's worth, I thought the pack reviews were great -- I think it is an impossible job because so much of it is personal preference, but you did it well).
I really appreciate these reviews, and when I saw the notice "Double Wall Tents (2010)" I got really excited. However, after reading the review, I was disappointed. Not in the way you covered the tents (I though you did a very good job) but in the tents you covered. To me, the list of tents looks a lot like what Backpacker Magazine might review. Yes, just about all of these can be bought at REI -- that is the problem. I want to be clear, here, I love REI, I buy most of my gear at REI, but there is a lot of great stuff that simply isn't sold at REI. This is the stuff I expect you to rate. Maybe it is too much for you to cover all of the combinations. Fine, then remove some of the standard tents. Again, this could be done simply and easily, by lowering the weight standard. Failing that, I would err on the side of reviewing a cottage tent, rather than one sold at REI. I can walk into REI and see how an MSR tent fits. I can buy it and return it without guilt or cost (no postage). The same isn't true with many of the mail order tents.
I think it is impossible to rate every combination of net-tent and tarp. But, at the same time, I came up with several examples of companies that state, on their website, that it makes for a good "double walled tent" when paired as such. Another approach would be to simply ask some of these companies for a combination that meets the requirement. Some may say they don't have it, or that it would be a stretch. Others will say that a particular net-tent was designed to go with a particular tarp.
Now, a personal story. When I started reading about ultralight backpacking, I ended up getting a single walled tent from Eureka (a tarp didn't make sense -- too many bugs). The tent sucked. Eureka makes a lot of good tents, but this one had horrible condensation problems. Then I found out about this website. Soon after, I saw a review of single walled tents. They included a few tents from big manufacturers, but the ones that came out on top were made by SMD and TarpTent. I had never heard of them. Based on this website, I decided to get a TarpTent Squall 2. If not for this website, I may have given up on single walled tents and ultralight backpacking in general. If I hadn't gone ultralight, I probably wouldn't have gone to half the places I've gone (I hate carrying a heavy pack, it kills me). In other words, those reviews changed my life (for the better). I just don't see this review doing that for anyone, while a review that included tarp/net tents combinations could.
Again, it's too late for this review. It's also not fair to suggest that you test gear that wasn't available when you started testing. What I do suggest is that if you consider these types of tents (or whatever you want to call them) in the future when doing reviews. Throw them in a different class, if you want, but I would really appreciate such reviews. I don't know if you plan on doing a test of one person double walled tents, but that might be a place to do it.