I only string for 3 people (me, wife, son). I have a Gamma Progression STII with the floor stand. http://www.tennis-warehouse.com/Gamma_Progression_ST_II_Stringing_Machine_/descpageGAMMA-STII.html I am debating if I should upgrade to the Wise electronic head. I like the idea of the consistency, etc. Many, many years ago.....I learned to string at a small pro shop on an early version of the Babolat Star. What are the thoughts from the Hive???