Okay, at the risk of boring this entire thread to tears, here's what I've done for this round of "Chase the Cracks". I channeled fresh V-grooves into the cracks that weren't perfectly flush. After reading up on the internet and checking local stores, I opted for JB WEld, but bought putty as well -- hoping not to resort to it, but at this point, I'm open to whatever it takes. The only difference in the V-grooves I cut this time? I drilled small holes all along each side of the V's so that the material had more surface area to adhere to. It was a tip I found online. Anyhoo, really hoping this does the trick. Also picked up a variety of sandpaper and since I've gone this deep, will diligently utilize several grades as I finish. It's going to be the bomb, or I'll die trying. Hope all can learn from this. I know I will. I'll post some photos of the million dollar wheel once it's ready.