Great tread, I always love to see how differently people go at a thing. I'm from the beginner section, one year into making bows
So don't take this as advice, just my two cents.
Right now, I tend to leave out the long string, cause it misled me everytime, producing a bend that had little to do with the one of the short string.
Much better, I feel, is the impression of the floor tiller. But I think it is important to press the tip towards the other one, as a string would,and not pull it rectangular to the limb. I hold the bow upright and press down. When I feel the limbs are in balance, I string it. Then I do corrections at brace, without pulling. When it looks good at brace, I find I usually have to do very little for a good full draw.