As the title implies, I'm curious if I could get by a 400/390 spine shaft? My Answer will most likely be maxed around 65~66lbs at a 29in draw with smooth mods. I typically cut my shafts shorter than draw length to 28in, as long as I'm clearing my rest. I do the same with my Destroyer 350 at 67~70lbs but with a 340 spine with no problems. I realize the Answer cams are stilly classified as 'hard' cams but according to charts I'd be borderline 400/340 spine. Any input guys and gals?? Thankya much!