Mounting should be fine for cooling
Please, go slow. If you suspect a problem research it before making changes, at least if it isn't obvious. Changes are not good for SPS.
Also. Setting the lights too high will kill corals in hours! Acclimation need to be taken seriously and slow. Also get a good PAR meter if you can afford it, the Seneye is good for setting up LEDs.
The apps for the Kessil at launch wasn't really ready, now they have fixed the issues and have made them great lights.
Good luck and come back with pictures.
Yes I am reading as much as I can about coral and clams(I know I'm a year away from getting my first maxima). My first rule is nothing good happens fast in a reef tank. After the tank has cycled I am going to put a couple of fish in it before I even think about corals. I do not want to kill anything because of lack of knowledge or carelesness when there is so much to read and learn on these forums.
I am very glad to hear the issues with the kessil have been fixed I was a little worried about that.
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