Dear friend ,
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/essays-on-sikhism/1442-naam-simran-remembering-lord-naam-jaap.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=1442
I congratulate you for the time and the effort you must have put in for the productiion of the article.It seems a research job.I am looking for the followings:

1.Is there any scriptural reference that we should do the simran of HIs name by chanting 'waheguru'.Kindly let me know if you have the source.
thx and regards.
hps