Dasan Das Ji, can you provide any concrete evidence that this maryada was established by SRi GUru Gobind Singh Sahib Ji?
The first parkaash of Sri Guru Granth Sahib Ji was done by Baba Buddha Ji at Sri Harmandir Sahib during the times of Sri Guru Arjan DEv Ji. There was no AKhand Paaths during this time as the maryada was to do continuous kirtan day and night. Parkaash, the opening of Sri GUru Granth Sahib Ji was only done after Asa Di Vaar and Sodar Rehars during the giving of Hukumnama. There has never been any Akhand Paath Maryada during the times of GUru Sahiban as Akhand Paaths did not exist.. First Akhand Paaths started during the times of Dal Khalsa when Singhs were living in the jungles. Jots were kept during the night for practical reasons but not in the day as it makes no sense.
Dhoonph is ok as long as it us used to remove bad odor- there is no need to keep it going when bad odor is removed. Most people use air refreshners or natural flowers which are much more healthier alternatives.
Maryada of keeping Jal on Amrit sanchar occasions also was established during the times of Sardar Jasssa SIngh Ji. It did not exist during times of Sri GUru Gobind Singh Ji if so there would have been an akhand path duing Vasakhi but there wasn't and the jal was obtained from the Saltuj river. The maryada of keeping jot, dhoonph , and coconut at the same time was emulated from our Hindu brothers who are fond on doing devi worship. You claim coconut offering is symbolic as we our offering our head. Traditioanlly, offering of coconut was symbolic from each proceeding GUru as it meant gurgaddi was being passed on to a certain Gursikh from the sangat . Gursikhs cannot offer Gurship to king of Kings.Who are we to offer Gurshiip to Sri Guru Granth Sahib Ji? Doing parikama around Sri GUru Granth Sahib Ji is symbolic of offering our head there is no need to offer coconuts, lol.