Since Mike Chisek posted the Red Flag video about some issues we discovered at Nelson Ledges, we have been getting a lot of emails asking for more information about head and neck devices and how to use them properly. Here is a list of the manufacturer’s installation and use PDF’s.
If you have a head and neck device not listed, please message us at

HANS Quick Start Guide –

Simpson Hybrid –

Necksgen FAQ –

Schroth Racing SHR Flex –