I was looking into some monopods to improve my on-the-run potential for some upcoming projects and I'd like to unify all my gear with one QR system so I can switch from a slider to tripod to monopod with relative ease (if needed). I'm interested in these monopods:

1. <http://www.bhphotovideo.com/c/product/945109-REG/manfrotto_mvm500a_pro_fluid_monopod_with.html>
2. <http://www.bhphotovideo.com/bnh/controller/home?O=&sku=967703&gclid=CJ3B25_XzL8CFQYxaQodWxQA6Q&Q=&is=REG&A=details>

Quality and opinions aside, I'm trying to find out the QR system used for both. What I've found is that Benro ONLY sells the QR plate and not the mounting portion, and Manfrotto has a variety of different QR systems. Can you only adapt Benro products by buying compatible Benro heads (S4 in this case), and which Manfrotto QR system is compatible with the monopod I listed? 

Thanks!