I appreciate everyone's replies, by those very interesting links I see that vykaran is not a preferred element, but I would think that the question of placing emphasis on different words so the correct meaning is gained, would probably be answered by vyakaran, rather than their being everyone's own opinion, which would create the question of how to pronounciate in the first place.
I don't know why, but I still feel their should be more to santhiya, I know that there is supposed to be a pratan link in this way of pronouncing gurbani but it just doesn't make sense to me.
Thank you all for your replies though, hopefully Guru Sahib will guide me to the truth. The other thing I would say is that issues like this really show why we as a panth need to come together and fix all differences of opinion on such important matters. There really should only be one agreed way to read/interpret bani so as to avoid such confusion.