well its not that easy, at all. it looks shitty and cheap that way. i dont care how sharp your razor is and how steady your hand is it iwll still look cheap for alot of reasons and this stuff just filled in the gap and made it look more complete, and btw you cant overstretch fabric that doesnt stretch at all, it isnt fleece or anything like that. heres the shit i used till i can get the black vinyl type of edging.
if you look close enough you can see the stuff tucked in the crevace..