12 May2014 Check out this mind-blowing video of the 20X Challenge at Southeastern Lineman Training Center in Georgia. You can read more about this epic training day here. Hooyah! PS – Only 1 day left on the Jon Atwater Online Auction! Closes Tuesday, May 13, 2014. Go here to make your bid. PPS – Look for big changes coming to the site and an exciting new training opportunity.