I just received a $100 gift card to g o l f s m i t h dot com and was looking to buy a new stringing machine. I orginally got a klippermate one but since I got the gift card I was thinking of upgrading. Which machine would you select. I heard people were ok with the gamma one and others regretted getting one and should of got the alpha 4k. I preferally wouldnt want to spend too much for the revo 4k. but the price is revo $549 vs $469 for the gamma. i'm starting to string for other people and my cousin is on the tennis team so i'm hoping i can get more business. any suggestions? Also since the revo 4k isnt a drop weight how is the tension calibration? is it easy and should i check every 30 rackets string? thanks again.