That came out perfect Abbas. I am also pretty new at this, but it is my understanding that the real purpose of toothing is get the surface level rather than to provide a better glue bond. If you believe this as I do, then it isn’t necessary to tooth plywood which is already flat. There might be different opinions on this, but my glue-ups have gone very well without the toothing on both ply and MDF. I would tooth if I were using solid wood instead as total flatness is far from guaranteed even after planing. I am also thinking that another way to tooth a surface wether ply or solid would be to run it through your drum sander with 80 grit on it with one pass sideways and one pass lengthwise. A lot easier and faster than doing it by hand, and I would think, more accurate too.

I won’t be surprised if you are wary of my opinions here as I am far from well experienced with either veneers or veneering, but I thought it might give you something to think about and maybe experiment with. It’s always great to save time and work, especially on big projects.

Mike, an American living in Norway