One more point about the horizontal tube in the main hoop being the LONG distance fron your seat/shoulders. Shoulder belts STRETCH a GREAT during a frontal impact/crash. You do not want that long distance that you now have. The longer the shoulder belt the longer they will stretch. Also with the vertical distance of the horizontal tube be sure the height is correct relative to your back plane/shoulder height per the GCR/manufactures shoulder belt guide lines. Please google Issac head & neck restraint & watch the video of their sled craches. You'll say to yourself, WOW, with a great deal of understanding.
We ALL like to do things OUR way. If you have an acquaintance with some race car experience please use him/her as a mentor. You'll be ahead in the end 
Last edited by ddewhurst; 08-07-2009 at 08:27 AM.
Have Fun ; )
David Dewhurst
CenDiv Milwaukee Region
Spec Miata #14
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