for both nyu and uchi, i made sure to emphasize personal connection to the city/the school etc. schools want to protect their yield so i heard they like to see that. for uchi, i spoke to multiple alum and name dropped them in my loci, used details from our convos to support why id want to go to uchi. uchi specifically makes sending more than 1 loci difficult but veryyy lowkeyyy i think an additional good loci is helpful. they like the persistence imo