I am going to the hobby shop tommorow and I am going to replace my RC10GT's spur gear and clutch bell. I would like to have a good top speed So I was planning on getting a 16 or 17 tooth clutch bell with a 67 tooth spur gear, does that sound good for a top speed? also I am going to buy a new break fiber? and one more question are 3 shoe clutches better that 2 shoe clutches and if so what are the advantages?