After much research, I have decided to buy the Silver Lungs generator because I want to get into local production, and it seems that this machine runs the "cleanest" due to the 7 gauge silver rods.
I also own a Silvergen SG6 and it is a wonderful unit but making anything close past 10ppm will cause a lot of oxidizing on the positive silver wire which causes particles to fall off into the solution. It is best for around 10 ppm of mostly Ionic Silver.
I also want to try both "true" Colloidal Silver and Ionic to cover both sides of silver supplementation in my daily regimen.
Just a heads up though, it will take about 3 weeks before shipment because they are backed up at the moment. I spoke to an employee today, and he said mine is in the process of being built.
The owner Mario seems to be very knowledgeable about CS production. Of course there will always be people who disagree on the ionic/colloidal issue but as far as the unit itself goes, I haven't seen one that comes close to quality. I'm basing my opinion from what i've seen on videos and pics.