I like your approach to this Abbas. A great way to get some real experience before doing an actual project. I know you will have this mastered before you go on to the coffee table.
Some add a little salt to increase the open time, but I have no idea in what proportions.Another, and perhaps better alternative would be to heat the substrate before hammer veneering. You could use a heat gun or even a hair dry blower for that. Good luck moving forward!
Mike, an American living in Norway