Lunati 60403 with Hughes 1110 spring???

Im getting ready to use the same parts. When i contacted lunati, I gave them the springs specs and they said they would do fine with the voodoo 268.

Did you ever figure out at what lift the Lunati spring was at to reach 363 lbs/in? At .550 the Hughes 1110 is at 310 lbs. Any thoughts?