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My name is Andrew L DuBuc (also known as Ydna on the internet and otherwise) and I'm the one behind this website. I'm located in southeast Michigan (USA). The ZDS website begun as a tech resource for SP markers back around the year 2002, but grew to encompass a larger portion of the paintball market as well as operate my repair business between the years 2003-2007. I no longer operate the repair business however I have continued to operate the "Store" selling some small replacement parts. The tech side of my website will be here forever, and I will continue to add more information to it as new and interesting products are released. I've been involved with the industry for many years and am glad to have taken part in such a tight-knit group of developers in this time. I hold no specific "allegiance" to any company in particular; I hold the belief that most paintball products have their own distinct advantages and disadvantages, and I make a point to avoid quantifying anything as being wholly better or worse than something else. Is a Shocker better than a DM? Who knows; they're both quite good products. As an engineer myself I respect the opinions and experiences of others, and am fully aware that few players want to hear babblings about personal experiences, so I simply leave them out. I provide the facts and you can form your own opinions. Beyond that, I'm more than happy to share my thoughts and experiences if asked. I consider myself an independent entity and enjoy helping others regardless of their background. I'm automatically friends with all players, tinkerers, airsmiths, and anybody else with very little exception. I want the paintball community to come together as much as possible. About Me: By trade I work as a design engineer and production technician. I can't really get more specific than that, but I can say that I've worked in many industries including robotics, automotive and vehicles, machine tools, product packaging, medical (ultrasound), and of course paintball (or as I like to call it, applied pneumatics). Over the years I've designed every aspect of paintball equipment, from triggers to feednecks, firing assemblies to regulators. I have several patents pending on future designs. In general, my specialties are dealing with machined components and assembles, electronics integration, and pneumatics applications. I co-founded the company Nummech Products which is the paintball subdivision of my engineering business Mechanized Numerics LLC. My website is zdspb.com, which currently exists mostly as a technical resource for advanced paintball equipment. Accordingly, the site has become a support resource for thousands of people each day. See the site statistics page for more information. I'm frequently asked how I got started working in the industry. The short answer is, it took many years of spending every aspect of my life engrossed within the game above everything else. From the very beginning I've acted as a repair tech for virtually every marker available, and am certified or authorized for most of those modern-era ones that are common. My repairs lasted for several years until such time that I begun experimenting with my own customized parts and modifications for markers, which then branched into designing new components for them, and eventually blossomed into the fabrication of entirely new markers and technologies from scratch. In 2009 I begun development of several contract designs, so to keep up with the workload I merged my machine shop with that of a machinist colleague, marking the creation of Nummech Products. As mentioned, I've worked in many other industries over the years. I also work part time for the local Community College as an automation technician. In addition to this website I am also administrator for shockerowners.com and ionowners.com, moderator for nerveowners.com and smartpartsowners.com, and moderator for several pbnation.com forums (DLX, PGi, Michigan regional, and all Smart Parts forums). Contact me using my regular e-mail ydna@zdspb.com if you have any questions or comments.