yea the router on the jasper jig jumped as it finished, cutting out a 14" hole the weight of the cutout tends to moved (it is only 1/8 dimple and wont hurt a thing). this used a sheet and 1/3 of wood, with only a 13x97 of waste. cutting those 45's takes some time, then to miter fit them. i put a 1/4 round over on all outside edges for no sharp edges, cut a 3/16 rabbit on sides so if he chooses to carpet it it will have easy and good looking seams.