What are some speeds you guys are seeing out of your sv 27s we have a few in our group that are running 43 mph with to 2 2cell lippos 3700.And one thats flying 52 mph with a nemisis xl with the bk esc.At that speeds thats max out for that hull it gets really squirelly but it a blast to watch.With 7 cell 4200 the 38 to 40 mph range is common we have seen 5 mph increase with the correct props.