Gotcha.
Here is some semblance of an answer about my experiences with the Tiki foods and a diabetic cat.
The Tiki cat foods have many different "lines" or varieties available. Luau, Grill, Aloha Friends, Velvet, After Dark, Raw and some dry foods. I've used the Luau and Grill "lines" with my cats. Tried the Stix wet treats, but my cat is not the type to hang around you while eating something, so those did not work for my cat.
Their foods are more expensive, but 'you get what you pay for' is an appropriate saying. Lots of their newer lines and treats contain more carbohydrates, more fats, less protein. They may say "grain free", but look at the ingredinets list first and you will see they have substituted tapioca, peas, beans, etc. Notice that smaller print word "with' on the After Dark line. That is because the first ingredient is chicken broth and then actual meat and organ meats follow. Still may be a good food choice for your cat and organ meats provide a lot of good nutrients.
I use the Tiki cat foods today, but my civie (non-diabetic) isn't on insulin. The Tiki cat foods Grain Free Luau line are all shredded or more chunky style foods, not smooth pate styles. Most are fish based, and because of the contamination of heavy metals and our pollution of the oceans, fish is better fed only 1 or 2 times a week. They do have a Succulent chicken and a chicken and egg version. Have not tried their After Dark line. Lower in protein, so if your cat needs to gain weight or has lost muscle mass, the After Dark line may not be right for your cat.
When my diabetic cat was still alive, I fed the Tiki to him as a treat only, because he preferred the pate style foods. Plus Wink had already gone OTJ (off-the-juice, insulin being the juice) also called remission or being diet controlled. So different situation. The Tiki didn't seem to have an affect on his BG readings, but by then he wasn't getting insulin so did not get tested throughout the 12 hour cycle.
The civie loves all the Tiki cat flavors and is able to eat the shredded chicken one ok, even without most of her teeth. She is easy with food choices and will eat any cat food I give her. Haven't had any dry cat food in the house for 6 years and 10 months (since I got the diabetic cat eating wet food). Haven't had any cat foods in the house unless they were <10% carbs for that long also. Took a while to transition my DFAA (Dry Food Addicts Anonymous) cat to wet food. The other cats were like "Hey, what took you so long to feed us the good stuff. It's about time."
These tips from Dr Lisa Pierson's catinfo.org website may be helpful to people that have a hard time getting their cat to eat canned food.
Transitioning Tips for Dry Food Addicts.
p.s. SullivansDad is now a convert to home testing, even though his Sullivan is a bit of a "fractious cat" shall we say.