Lowther Prime Example
Lots of epitaths, no numbers. Exactly the type of comment I expected you to base your opinion on. You seem to have more of an affinity for insult than numbers. I believe he used to work for Zubrin didn't he? That would tend to lend credibility to his comments if he could actually produce some numbers to back up his claims, otherwise an equal possibility is a disgruntled employee. Good engineers happen to be good at back of the envelope calculations by the way and often serve as a way to whittle down options, but they should never suffice as final design.
I'll gladly check out the rest to see if they are any better.
Regards,
Mark