I have started shadowing a DO family physician in July (probably for the total of around 10 hours). He told me that he will write me a reference letter so I was wondering if it is worth including this in my ECs for the primary application? Would it be necessary since I'll be getting and LOR anyways? I personally prefer not to include it on my ECs since the list is already long and the hours of shadowing is pretty minimal. What would you suggest?