I have been trying to build Ton Noteboom's Saturn V (http://www.jleslie48.com/satv20/) and I am running into problems with the S-IC stage. I can't seem to get the shape right. Are there any tricks to this, besides the formers? Also, the edges of the bottom section do not seem to line up. Some of the lines are missing. Should this model be printed some other way besides the default settings?