gerygaub The carrot fiber will help for sure and as long as you are near or above 20% fat you should be okay. The issue with that is that Ground Sirloin is sometimes 90% or more lean. You might want to try adding some Cold Phosphate for moisture retention? Maybe hold off on adding that for your first batch and just add it if it comes out dry?
The Cheeseburger Cheddarwurst comes with sure cure so it can be smoked or you can leave out the cure and make it fresh. If you add the cure and smoke it just make sure you get REALLY good protein extraction to help prevent the fat from rendering out during the smoking process. If you are not curing and smoking and are making a fresh product let it cook at lower temperatures initially on the grill or in the pan, same goal here we don’t want any fat to render out.
Your creation sounds amazing and I don’t know if you knew it or not but we have declared this the Month of Bacon at Walton’s so when you make these please post pictures of them to Meatgistics and if you want either the Meatgistics or Waltons Facebook or twitter or wherever!