I use them all the time. They do them in large runs to keep the cost down. Sometimes they are out of stock if they sell out before a big batch comes through. They are forged in the US, in Texas actually. Not as expensive as a billet, and a step up from Scat and other offshore offerings. Personally, if I plan to exceed 700 hp on a build, I generally use the Crower Sportsman as a stronger, budget alternative to Crower billets. Crower estimates them to be 1000 hp capable, but that is not an exact science. I usually stock the 6.625 and 6.700 Big Block Sportsmans. I have used a few sets of Molnars for that "in between" need. I think they are the highest quality machining of the Chinese rods, and may be held to a more strict metallurgy. When I want the best, the billet Crowers still get my vote. I have never seen one give up without contributing factors.