This might seem insignificant to some, but even the order in which the 'diamond shaped' rumalla is placed on Guru Ji has been layed out for us (us = Nanaksar sangee).
Baba Isher Singh Ji Maharaj (Nanaksar) and Baba Nand Singh Ji Maharaj used to place the bottom side of the rumalla over Guru Ji first, then the right, and then tuck the left piece under Maharaj Ji, and finally he used the top(and final) diamond piece and place it over Guru Ji and tuck it in 'under' Guru Ji (at the 'front' - the side facing you).
Also, BabaJi used to say that the best time to do ardas and ask for something from GuruJi is during Rumalla di sewa. The analogy which he used is when...
"A wife is ironing her husbands clothes with total love and admiration before he goes to work, and since this "sewa" is done with total compassion (making sure every crease is intact) the husband can't help but marvel and admire the glow and admiration she shows in order to make sure he )the husband) look like a 'king.' Then finally, before he walks out of the house (with his new clothes looking clean/fresh) she'll ask him to stop by the store and pick up something, or run some errands etc, and since the "clothes/rumulla" sewa is fresh in his mind, theres no way in which he can refuse.
I hope this made sense, it sounds way better in Punjabi... but I hope the message was clear.
Great post Neo, thanks for sharing, its really appreciated.
Finally, Baba Nand Singh Ji Maharaj made it very clear that resting your elbows on the palki while doing sewa/chaur is forbidden and that one must always make sure that it is only the "feathers" which go over Guru Ji and our hand should never EVER be placed over Guru Ji or in a resting position on GuruJis bed.