Solid Hardwood, Engineered and Laminate Flooring - Manufacturers not recommending moisture barrier?

Twelvepole, several times yoiu have mentioned manufacturers recommending skipping the moisture barrier on plank flooring and using a strip of adhesive on the nail edge of plank flooring, eliminating the NOFMA recommended screw and plug..

This would be a stunning change of industry standards if the manufacturers were to admit that the moisture barrier was unnecessary.
Exactly which manufacturers are making this recommendation and do they also recommend that the moisture barrier be skipped for strip flooring as well?

Urethane adhesive is used with the wider plank floors 4" or wider. Use a quality urethane flooring adhesive and full spread adhesive. Follow the adhesive manufacturers recommendations for spread rates, trowel notch size, etc. Dry rack 8 to 10 rows, then mark the sub-floor only as far as flooring has been racked, spread adhesive, then install into the adhesive and fasten. Avoid allowing urethane adhesive residue to dry on the face of the flooring. The felt is omitted when installing plank flooring with adhesive. The felt is not omitted when installing flooring less than 4" wide. These instructions were given to me by Somerset Hardwood Flooring.

Marco, its not really a NOFMA OR NWFA thing.
It is some but not all, manufacturers recommend procedure.

I have seen it to, in the manufacturers literature for their thinner wide plank.

A bead of liquid nails or PL-200 or 400, on each edge usually does it. Not a full spread.

Perry, this is for solid, 3/4" plank installation. With full-spread adhesive, I can see that vapor retarder issues may be addressed. What about Marco's questions re: no vapor retarder?

Well, so far I've heard that the glue should be trowel spread throughout, that the nail-edge should be glued and then that the nail and groove edge should be glued.

I am not convinced that any one of those methods will prevent a 4"+ wood from cupping. It still needs to expand and it still needs to go somewhere. This is the exact reason the standards have always refused to suggest glueing 3/4" solids. Additionally two, if not all three leave the wood suseptible to moisture from below, according to NWFA and NOFMA doctrine.
What I am suspicious of, is that we have some prefinished plank manufacturers anxious to sell their products, knowing that following industry standards for screw and plug is impossible, advising their customers to install in a manner that will leave the floor looking like crap in 5-10 years. The manufacturer will, upon recieving a fration of those complaints, simply wiggle away hiding behind a warranty which excludes everything that could be associated with moisture.

Back to my original question- what specific manufacturers are recommending their 4"+ planks be installed without moisture barrier and with glue?