I was impressed at Alvie when an observer fired up his Ossa and started doing all sorts on it without any apparent need to warm up so the injection must be doing something. However, I don't have a problem with having to warm a bike up before I use it and, given the number on here who seem to have problems getting their laptop to talk to their 4RT, I'm not convinced of the benefits. I've never had any difficulty getting the screwdriver to talk to the carburetor.