Steve- I had a model 3 with 912 that topped out at 100mph. I sold it after I completed my model 4. The 3 was slow compared to my 4. It was a blast to fly and still is but I had a hard time keeping up with all the newer models my Squadron mates fly. Not anymore.When you say that you had the slowest fox of the group and now it's the fastest. What can you say you did to make that change?