Recently I switched from 2.2mm to 1.75mm guylines on my tarp. I never had a problem with the linelocs slipping before, but I've heard it can be a problem. Has anyone experienced this, and what is the easiest way of resolving the issue? Also, how feasible is it to switch out the linelocs for d-rings once they've been sewn in? My sewing skills are quite limited.