I like those straps bob. Looks like a nice set.
The weld on d rings are great, that's the same ones I use on my trailer I believe.
I was under the impression it is the law to cross straps as it stops your load shifting in any direction.
I like the way it holds my jeep down, and I drive relatively aggressively. I have seen people run 2 strait straps and 2 cross in the rear (6) total, which I think is overkill for our load.