So after being the exception that proves the rule, (I broke Denny's "cheap and easy" method) I bought a SS Brewtech 10 gallon mash tun.
Despite have brewed for several years now, today was my first time brewing on a system with a false bottom. I ended up having a terrible time getting my runoff to the point that it didn't have grain bits in it. In the end I managed to keep a most of it out of the kettle, but sill ended up with some grain particles. I'm not terribly worried, it'll still be beer.
The real issue is how to prevent this from happening again. After taking everything apart for cleaning, found that I'd pulled a large slug of particles out from under the false bottom. I'm not sure if I have the flow rate right when I started my vorlauf, and perhaps this is how so much got under there? How are other folks vorlaufing?
Aside from this the mash tun worked great! Even with my opening the lid 4 times to check the temperature I only lost a degree in a 60 minute mash. The only complaint I have is the included thermometer-it's completely useless. At one point it was reading 137o when my Thermapen was reporting 156o.