I have a Gamma Progression II 602FC. 6pt mount, fixed clamp, drop weight. I think I've strung 130 racquets? Or something like that.
My son came home from skills class and is packing up for Nationals. So while he was taking a shower and getting something to eat, I took his racquet and re-strung it in about 25min from the time I started cutting the strings to putting the damper back. That's probably about the fastest I can go. Typically I budget about 45min on a lazy Saturday morning.
IF I had to do it again, I wouldn't mind going with a crank LO machine. I like the 6pt mounting because I can safely cut out my crosses to re-use my Nat gut mains and just string cross.
I like the fixed clamp because it's simple and quick. I watched some Youtube videos of floating clamp operation and while it's definitely doable for stringing for me, I just like the easy starting using a starting clamp and fixed clamps. Plus less things floating around (I already have enough tools in the bin that rattle around).
But the thing that I worry about on DW is the inconsistency of the pulls. I watched some newbie tutorials on Youtube and was amazed of the variations in pulling the strings. I won't go into not pulling the 2 mains to reference tension (floating clamp), but if you hit reference tension (horizontal bar) with your first try, vs needing 2-3 iterations of releasing, ratcheting, tensioning, repeat..., you have different levels of pre-stretch. Also, the time it takes to start pulling tension and clamping your string can vary because of this. So each string is seeing different durations of tensioning (potentially).
Having strung enough racquets and recognizing what contributes to consistent stringing is important. For example, I try to hit reference tension on two iterations; one to get very close but under, the second is just one or two notches to hit horizontal. It takes me about 8sec from the time I start dropping the weight to clamping off. I repeat this every single time.
By contrast, a crank or electronic tensioner can repeat the tension to reference consistently every time and it's easier to clamp it off within x.x sec every time.
But if you keep these factors in mind and get enough practice, the 602FC works well for stringing once a week.