I tried the "green goo" once, and I was not impressed. Also, I had it for a couple of months and someone came over and wanted to try it, I opened the jar and it was a solid mass, it totally tried out in a sealed jar after on use! Sorry, I stick to tires, they last a long time for me and it's what the locomotive was designed for. For replacing traction tires, you need to fill the groove first, so the two-step process with some sort of RTV has to happen first. Way too much drama for something as simple as traction tires.
I confess, the one place I'd like to use something else if it was more permanent is something like the Vision Line PRR CC2S 0-8-8-0. Those traction tires are on the wheel next to the cylinders, and for all four tires, you have to remove ALL the rods to replace the tires! What a major PITA that is!. It's also why mine doesn't have traction tires right now.