5 shot, not that it matters but in every case where we used the same media as a test the results were identical. I don't think it is a coincidence. The blades are definitely the weak link. I still haven't heard anything back from rocket on what I sent them (I don't expect to either).

If you think about it the problem wouldn't be that hard to fix. For example Rocky Mountain locks their blades in a similar fashion and they are as strong as most anything on the market.