8D vs 11DE

Hello! This is my first reddit post ever, but I am about to go into college with a major in music education. I play french horn and definitely plan to continue playing it professionally throughout college and even afterwards. My current horn is an unbranded, non serial number, Amazon french horn, so I definitely need an upgrade. I definitely want a Conn, but I am torn between the 8D model and the 11DE model. If anyone has some insight on the differences between the two or which one they’d pick in my decision please let me know! Thank you so much!