That is cool that they are going to send you new ones but are they going to solve this re-occuring problem... I've broken two being to the track a total of 4 times with the sc10. The first one was definately over tightened but I learned after that and after the second broke I decided to stock up and I now have two packs of the axles as spares.
I raced for the first time yesterday in the sportsman class and got 4th out of 7 people with a 13.5t motor which I can say im happy with the outcome. But the whole time I was worried about going out in the practice before the main and breaking the axle, all because I wanted to see if I could clear the triple after I made changes.