Jumping from a helicopter is much easier than from a fixed-wing. I've done many jumps back in my younger days, and have flown jumpers in helicopters. As long as the static lines are a reasonable length and properly secured, there should be no problems. You need someone in the back to get the static lines back inside, so they don't bang the fuselage too badly, but otherwise it's a piece of cake. Don't expect a hover, because out of ground effect hover takes lots of power, and it may not be possible. We normally flew at 60 knots or so, there is no need for a hover.