I am considering getting a crank or drop weight machine as my first stringing machine. I will be stringing 4 racquets for my self (2 at one tension and 2 at another) and 2 racquets for my wife (different tension than either of mine). Is it just as easy to do all of the above on a drop weight as a crank? Should I just start with the drop weight and then upgrade? Thank you all for any help in advance. Have a happy new year.