My dust boot is that good. I get no dust what so ever other than an occasional speck or two when the boot goes off the edge of the board. There is no drag what so ever as the skirting material is very flexible and mostly doesn’t even have to touch the surface. Strong vacuum (6.5hp) is the key.
There are lots of very good dust collection post from other members and many ways to go, but mine works, is simple and I’m happy with it.
This was actually my first design. Here is the link to the latest post.