Kent Jackson has now thoroughly studied their conclusions and finds them to be nonsense. The Prophet Joseph Smith did not use the Clarke commentary in producing the JST and did not even have the book. Wayment and Wilson-Lemmon are simply wrong about most everything. In other words, the anti-Mormons have latched onto an illusion (that should not have been created) for comfort in their disbelief; a puff of smoke that is now blowing away in the wind and leaving them looking as foolish as ever.
In connection with this, FairMormon also posted an audiofile with one of the Church’s History Department Employees (Mark Ashurst-McGee) also speaking to this issue. It seems that much of what he said is also now shown to be erroneous as well, the major item being his number of 5 percent of the JST being taken from Clarke’s commentary, when it is actually none. (I encourage people to read and listen to these items themselves.)