I recall the Delta V well, had one and sold it to a collector. They don't have much collector value now, along with other bows, but some day they will. It made people take notice that bows could have greater speed with programmed cams, York bows came out just before I believewith fast programmed cams that everybody takes for granted now. What doomed the Delta V was it was heavier than the competition,if I recall right, but what killed it for hunting was it was very loud. Which is a great irony. You see rubber string stops like Jennings bowsin recent years, and now stops like the STS. The Delta V guy was the inventor of bowstring rubber stops that are attached to a riser mount, I believe, you can check patent history to find out for sure. Ironic because,the Delta V used hard rubberandstopped the string very early, which made it fast but loud. If you wonder why guys don't get patents on their stops it is because the Delta V guy invented it long ago. Of course that patent became expired and became public domain long ago, and you can't make anybody pay royalties on stops nowadays, but that is the feature of the bow that has had a long term effect on archery, along with the cams.