I see your arguments, and while it may seem so, do the math. (Approximate math of course, since you would really be able to do. it without guessing or cutting apart a yoyo)
Well, i haven't done the math, but i've done experimantation, and when playing with the yoyo's, my hatrick will tilt a lot easier than my lucky seven. When you play with your yoyo, you naturally make imperfection witch cause the yoyo to tilt, and it seems they affect my hatrick more. Maybe there is some factor you not accounting for?