It's just a bad concept.. When someone has a machine that already uses the same basic principles and you add something that doesn't improve the machine it's a bad copy of it. Especially now that you know someone else has done it better.. John did something most coil builders diddint do and that's make a rotary that's not a dd.. On top if it the spring just doesn't make it for me.. Your adding a second part of resistance to what the magnets already do, why have two parts to a machine that make something go up and down.. Keeping it simple is key..