Oil makers will promote the slow sellers and sounds like Edge is currently being promoted there. However, it's hard to unseat a product that works and here in the USA, Magnatec Syn has a nice size group of followers and believers, known especially for being a fuel dilution fighter and engine quieter.
My Hyundai 2.4 was quieter with Edge, than currently with Valvoline Advanced and I still have another 2K to go, with this OCI. That's the only difference I see or hear, when comparing Advanced with Edge. The hearing difference is small and may be attributed to 50 degrees difference in weather temps.
The only way to be sure, is to reverse the test and run Advanced next summer and Edge next winter. But I won't do that. I have two OCIs coming with Pennzoil Platinum GF-5....... then I'll buying the new arrival GF-6 oils next. Brand uncertain!