How to discuss unconventional high school experience during recruitment

Hi all,

I will be going through recruitment as a transfer this fall. While I am sure that my experience and leadership achievements at my previous college will be given greater consideration versus those in high school, and will therefore be larger conversation topics, I am unsure of how to approach my somewhat unconventional high school career and also how to describe it on my registration form.

I attended public high school in a well-regarded neighborhood for two years, and then attended boarding school out-of-state for two years. My reason for switching schools is pretty personal and I'm not sure I am comfortable with discussing it in detail during recruitment, nor do I think that would reflect well. When talking about high school with people I meet in general, I usually just mention the one I attended for the first two years and don't mention the boarding school. However, the registration form requires that I put down the name of my high school, so I am not sure which to list. I feel like it would be dishonest not to list the boarding school, which I graduated from, since it also asks for my high school GPA.

I am hoping this just won't turn out to be an issue since I am a transfer, so the focus should be on my college career. However, any thoughts on how I can approach the issue in an honest way that still won't raise any questions?