what's the other big dissadvantage you speak of MX?
my bikes stay dry, they stay upright and unless someone takes the van and everything they are pretty safe when you need to stop at Macca's for refueling and as you can see, 1 rope holds 3 bikes
Seriously I agree GMC. The more leverage the less energy required. Never blown seals or done any other sort of other damage people claim except the scratching on the bars using conventional tiedowns
If your worried about your fork springs/air pressure then put something between the wheel and the under side of the guard. It's not rocket science and you don't need a million bucks