Homemade Slide track adapters made from cheap plastic cutting board. Use these to mount rod holders, cameras, ram balls, and other kayak accessories to your slide track system. Cheaper HDPE boards (same material as plastic cutting boards) can be purchased from 80/20 Inc on eBay and you get more material for much cheaper!
Archery, Arrows Arrow Flight — There is a critical distance at about 5 to 8 metres. If the arrow hits fetching end "up", the nocking point needs to be lowered, and if it hits tail end down, the nocking point needs to be raised.