I think I am liking the look of Natural instinct...
My boys are raw fed and I often use Natural Instinct, but also buy cheaper meats/bones/veg. to give them more variety and cut the cost.
The reason I switched to raw from kibble was to try and improve William's health and I'm convinced it has. His coat and skin are much better and he no longer gets ear and lip fold infections. An added bonus is perfect poos
Louis would probably thrive on anything but I can't see me ever willingly switching either dog back to kibble because I'm convinced of the benefits of raw feeding.
They have some non raw in the form of treats and I also always have some tinned Chappie Original and trays of Nature Diet wet food for the occasional time when I forget to thaw out their raw food.
If Toby is prone to weight gain and sometimes has an upset tum it could be worth trying raw. If it doesn't work out or it's too much hassle you can change again. It's really all about what suits Toby's health in the long term but also about what suits your purse and the amount of time/effort you want to spend. Raw feeding can be more time consuming and needs more thought than feeding kibble.