I have always had good luck with using in-line weights.
In the western basin, it is shallow. (30ft) or less.

You can cover the water column easily with 2 oz.

I would agree that divers are very effective when running big boards. I do both.
I Like the Tru-trip divers over Jets though. The addition of a release makes them work better for me. (easier to retrieve)
I have seen a modification to the Jet divers to add a release.

A 40 Jet is nice because it dives fast and keeps your lead lines shorter...
It makes turning easier with short leads.
If you are using in-line boards (church,off-shore, etc) a 40 Jet is a bit too much.

I guess I would say, they both work great, just depends on the setup you are using.