From the perspective of raw-feeding cats: except for the persistent diligence against "enhanced" meats, the only time anyone really needs to be concerned about purchasing organic or range-free, etc. meats is if their cat has proven to have such a high intolerance to grains they react to over-the-counter chicken or beef. Naturally, cats diagnosed with IBD/IBS are prime candidates for this.
And even those cats are often able to eat "regular" raw meats once they've been on raw long enough for their digestive systems to recover from their kibble-fed days.
Something else to keep in mind... eating too fast or eating foods that are too cold can both cause regurgitation, too. Some cats take to beef so readily they gulp it down, then bring it right back up, unfortunately (there's nothing wrong with letting the re-eat it, by the way!).
MC, I haven't read your entire thread yet, but in case it's applicable, I want to throw this out -- struvite crystals are completely normal in a cat's urine and typically only become a problem when that urine becomes concentrated. Vets prescribe diets with "special" mineral levels, but really all the cat needs is the proper hydration. As you get more and more into raw feeding, I think you can pay less and less attention to mineral levels, as long as the food contains the necessary moisture levels.
Another benefit of feeding fresh raw meats over commercial fare is that they naturally maintain the cat's PH at optimal levels.
If any of this has already been discussed in your other thread, feel free to ignore it. 
AC
Thank you for your in put AC! Struvite Kitty is showing no symptoms of urinary tract problems, and I know what to look for. Her last urinalysis ended up being a home catch, and I think it was just too long in transport from home to vet (just over half an hour), though it was caught in a sterile cup straight from her as she peed. The pH was 8 and the vet said there were a ton of crystals. My vet was very concerned about this. She knows I am very resistant to "prescription" diets now, even trying other brands of canned (RC or Purina) and we did discuss urine acidifiers but I am not convinced she needs one.
But SK is in the habit of peeing in front of me, she even TELLS me when she is heading to the litter box to pee because she knows it is important to me. She pees three or sometimes four times a day, normal sized pees. There is no hesitation at all, no flinching as if the pee was hurting her, she jumps up to the boxes (platform) turns to make sure I am watching (often with a "prrt!") squats and releases her urine.
When she was on the awful c/d kibble she only peed twice a day, because she was a very poor drinker. The c/d kept her pH at 6.4 but it drove me crazy, feeding her that awful stuff, I worried constantly about dehydration and diabetes and it has taken it's toll. It's been 8 months now she's been off it, and I am still having some regurgitation issues. But she has a rough time with hairballs too, during the shedding months, won't allow grooming, and the pumpkin was really upsetting her tummy, too. (I do have one cat on daily pumpkin, for constipation)
All canned foods are fed in small amounts, always warmed up first. Struvite Kitty is a very slow eater and is fed very very small amounts at at time. Most of her meals are only .37 ounces at a time with a half hour in between. Twice a day (but not after a long fast) I try for .75 ounces in one serving. She still takes cosequin every day, and proviable with her last meal at night.
All meals are warmed by: I run hot water over the glass saucer. I put the food in the hot dish, and place the dish in another saucer with hot water in it for a few minutes.
I honestly don't know if I will ever go to a prey model raw diet. The work involved, both physical and mental, and the fear that I will do it wrong, is just too too intimidating. My goal is to keep them on a variety of sources of food, both canned, commercial raw, and some snacks of raw such as gizzards for all, and wings for the two who don't have trouble digesting bone. (not SK, no bone for her)
I know you are available to help me, if I ever do decide to go to home made raw or prey model. And I know you are available to help me, with anything in between too.
