Eyesacademic Jeeo,
I get to interact with the Jehovah's Witnesses (JW) often, and from these interactions what I could infer is that they are in agreement with the Mool Mantra, except that for them the "Sat Naam" is "Jehovah". I am impressed, even though in disagreement with what they propogate, by the dedication and devotion to their faith. In our community (small agrarian town), one observes that almost all the Jehovah Witnesses are hard working people; they devote (I presume) a dasvandh or more of their time on studying their bible, on their sat-sangh (meetings), aap japo avare naam japavo (praying and preaching). In essence they do "Kirat", "Namo Japo" but doesn't look like that they practice "Vand Chakko".
You are lucky to interact with the Jehovah's Witnesses who are willing to read the material on Sikhism. Most of them seem to be so brain-washed that they refuse to read from the books, of other faiths, if offered to them. Their attempts to proselytize is what puts me off. Most of them dress up well and seem to take pride in the fact that they are spreading the word(s) that they believe in. However, the concept of "Haume" and the role it plays in impeding our spiritual growth doesn't seem to be prevalent in their teachings.
In their attempt to show to the world that their path is absolute for the seekers, they have published the book "Mankind's Search for God" (Search). Page 100-101 are devoted (with distorted facts) to Sikhi, though they quote Encyclopedia of Faiths as their reference.
Though your thoughts on drafting a pamphlet on Sikhi (101?) are laudable, I would suggest that next time the JW visit you please ask them to get you the book Search mentioned above. Read to them section on Sikhism and highlight the errors propogated in the section (especially- "Guru Nanak wanted to take the best of Hinduism and Islam and form a united religion"). In their next visit may be do comparative study, for the benefit of the JWs, on Sikhi and ask them if they would be willing to let you do the presentation on Sikhi in their "Kingdom Hall." Unless someone is constricted in their thoughts by their belief system, there is no room do deny the universality of the message given by Guru Granth Sahib.