I've sent Pyro some of my stuff which has the odd bit of ballistics info, MK 103s will absolutely rule IMHO. Me 410 at FTH with 103s in the hands of someone who can shoot is going to be deadly. As in "ZAP! Thanks for playing."
RLM didn't favour the BK 5 too much due to its weight and low rate of fire. They liked 2x108s best, low weight high RoF, though I'm not sure that was ever mounted on a 410.