Hey Dino, I have collected from a number of experienced racers information regarding to this topic. I found them to be quite helpful.
Unfortunately, they are saved in my other PC, and that PC just refuses to start for me for a few days now.....I will salvage the documents and get them to you when I get the other comp to work. Just remind me
I think that when you do get to run the 05R, you will find out for yourself what the differences are. You are a very very good driver, I know you will drive just as fast with the shaft