I'd have to search for it, but as I remember it, he was in a northern European country. I could be wrong.
I'd guess to say that in a spir@l, the Via would do well. The problem with this pump is that it seems to make some noise when installed in a rig that's very restrictive (like all pumps). It can cause the shaft to bend, but it's replaceable. Many people swear by the Via, others hate it, but no one seems to understand why. My take on it is: if your rig is very restrictive, use two of the cheap buggers in series.
What's the latest specs on that Danner #2? It needs a sealing job, because it really can't handle the pressure very well at all (see the article on this site). Once sealed though, it seems to be quite good. I'm filing this one under "lucky find, if you can fix it".
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