Steven, You left out the URL, but from the description, I'd say you were writing about Sierra Proto Express. I've used them before with good results--both 4-layer protos and a batch of 200 boards from their regular service. However, the catch with the proto services is that they're all limited to .062" thick board and for this particular application, I need .050" board. That simple change in board thickness changes much of how one would normally get some simple boards made. I've even emailed several proto services to ask if they could do .050 as a proto, but they won't, which is understandable. Jeff Walther