....Anthony, if you fill that baby to the edge....

...you're gonna be losing a lot more than 20 yards.....the first few times
....if you got an 1/8 of an inch to the edge, thats ok.....play with that for now......LEARN YOUR BRAID!!....thats important. There are nooks and crannies about Braid that you'll only learn as you use it...don't be too concerned with getting it to the edge.....
.....just my opinion of course......
