Measurements off? I don't think so. I was reading in some construction trade a story on Mantis that indicated that the margin for error in placing footers was less than an inch. It's a precise science, not a guessing game.
Why would it be hard to support a 90 degree drop? You make that claim based on what? Three fewer degrees makes it easier to support? Dear God, Giovanola wants to build a coaster that goes beyond 90.
Please, if you're going to make statements like that, qualify them with some reasoning.
-------------
Jeff
Webmaster/Admin - CoasterBuzz.com