Even if you can keep the nozzles from clogging, who knows if they have the throw and mist to really grow plants. The bios are well proven and I still like his decision and logic to follow tree farmers suggestions. Compare the mist to what? He doesn't have any experience growing plants to know what's to look for. I will say one thing- those nozzles you sent me aren't anything like the bios, and I doubt they'd do much but humidify the chamber after understanding things a little better. I bet if you would have tried some proven nozzles you would be happy too. I also think Mike should try them again. The thing is, we imagine this fine floating mist as the right mist, but it's actually a little different that grows the plants better. The red cloudtops are a little too fine and light too, so it really leaves the bios as the best choice in my book after running a full circle. Just buy more than you need, they do have quite a few duds. Luckily they are happy to trade them out for free. Based on my experience almost half were bad (I think I just got unlucky), but even with the price, it's worth having success after all the rest we put into it.