New WD Hitch Needed- Reese DC or SC?

I've been very impressed with our DC system. 20,000+ miles, great performance, easy to use. One important downside is that it is NOT a slap it on and and your done initial install and setup. Setup is very important to get the bars set correctly on the cam arms. once it is set up correctly, it's very easy and reliable.

I have had no reason to even think about anything else. We often tow up and down the columbia river gorge with notoreously bad wind gusts and it takes really bad winds before it has noticeable effect on our towing.