Originally Posted by hercdriver7777
Yes, they are pre hinged and hinged very well with a laser cutter but if you dig a control surface into the ground it will tear it out. That is unless you put a thin beat of Welders at the inner and outermost parts of the hinge line. Not required but a good idea.
FWIW, I use dental floss in those positions to help stop breakout. Are the hinges top hinged foam like on the Telink Yak?