Personally i would stay away from real high speed stuff. 350' can be acheived with slower plastic. Be more concerned about stability. If you can throw a sidewinder, try out something similar to that. I would say a 170-172 valkyrie, Try a teebird. My longest drives have been with disc i know i can control. Bosses are going to be real stable. The amount of speed you would have to get on a boss to start working relevant to a sidewinder is a huge gap.