I am thinking to buy a new stringing machine. It will be used 1-2 times a week for me and my daughter. Could you please let me know your experience with these 3 machines? Which one would be quickest (least time spent) to get the job done? Also what do you prefer - 6 point mount or 2 point mount? Which one is the most reliable (I heard they are all built like tanks)? I can buy 5003 for 799$ but I couldn't find the 6004 for less than 1199$... That is 400$. Is it really worth (is it that much faster)? Appreciate all your help, Dan.