I have no experience with the chloride version, but it is not chelated and is an inorganic salt. Not sure if the spray is sublingual or just a means of giving a liquid-based transport mechanism that eases digestion, The following discusses the different chemical compounds of magnesium that can be used to supplement https://www.healthline.com/nutrition/magnesium-types
I have been on magnesium supplement for about a week and a half and take 250mg at night (1 tab). I am sleeping a bit better and i have a regular daily bowl movement now
Other things i had was musclular twitching but had that for 20ish yrs and 2 other things and they seem better now as well. So its a work in progress but everyone on here is a great source of information and help