Kathy's fab ball rig is A+! I was worried about the joint, but it's reinforced and even had a thick rubberized foam protection for shipping along with enough bubble wrap for two shipments. It's a very nice, beefy rig. The mouthpiece design is fantastic imo. It did come with a strange quality control type label seemingly baked on bottom, but I razor bladed most and will get the rest with alcohol. I will gladly put in the work to remove these labels, if the quality like this continues, so a very minor complaint. It has a 14mm female joint, 12 slit 6 top 6 bottom perc, 10.25" height from mp top to base bottom, 3.5" base, 14 fab holes not including the Klein welds. I honestly can't believe this is under $50, it's a keeper! @mvapes got any good ideas on making this a Big Lebowski themed rig? Lol, don't ship that item I just bought off you yet, and we can combine shipments if possible. Hit me up on the pm buddy, thanks!
I just got Kathy's Fab Egg Beaker. It was bad. Scratches, crooked perc, doesn't function correctly and I get massive splash back.
As for the Mobius discussion, I have a bigger mobius piece and I will say the craftsmanship isn't perfect. but god it hits great. Only problem is it's big. I'd imagine the smaller ones also have good diffusion, but when you're using a small piece for vaping/dabbing, you don't need all that diffusion anyway, so I prefer the chinese tiny pieces for those instances. Only time I need a great diffusing rig is for flower, which I don't combust!