I can't wait to see this. Unless you used at most 8ft segments, all near the exact same length, I can garantee that your element will not be heartlined perfectly, and heartline will not be an exact parabola. It is physically impossible to do so by hand with any longer than 8ft segments, because it order to get an exact heartline you need to use values for the bezier control points that extend beyond the two decimal points allowed in the NL editor. And even if you did use 8ft long segments, then I highly doubt that you will have been abe to get it smooth. Even the greatest handbuilders on the site would have difficulty with that, and you are nowhere near their standard of building.
Edit: I wrote that before he posted it. Having seen it, HA!
you call that perfect? I'm sorry, but that is nowhere near pefect. The heartline is not straight at all, and I've seen much smoother hand made ones before.