its lookin really good now.
if youre at your weight at 16" , youre not far off. scrape evenly and keep the gizmo handy as you go , just keep going an inch or two at a time.
most guys on here try to stay about 5# over target weight at the draw you want , that way you can slim the tips , adjust tiller if you need to , and finish sanding.
thats just my .02 ...your pace is perfect.
as far as the backing it looks good. i think art or pat b recommend taking a mill file at a consistent angle , and just cleaning the edge up like that.
-hov