What is "screwing your shoes"?

It’s inserting short, hex head screws into the lugs in the outsole (ie, the bottom) of the shoe For an excellent write up on how to do this, read Matt Carpenter's webpage, "The Screwed Shoe".

Hawks Ridgeline aid station Heartland100

Sanders' Saunter 10K Trail Run, Sat. Nov. 19, 2011, North Shore Trails, Clinton Lake. Brad Trimble photo

HAWK 100 & 50 Mi

Hawk 50-Mile & Marathon Trail Runs