Hi! I lived in Willimantic too. The reason I changed this is because the 32+6 route is part of the National Highway System, as it bypasses that segment of 66 -- it was actually a mistake that I initially changed 66 to be trunk. Highway=trunk is specifically for long-distance travel routes, so it does not matter if Willimantic locals use 66 more. In fact, that's a stronger argument for it being secondary.