I hope this is in the right place but not quite sure. So I am planning a 2240 build that will end up as a 1740 but a part used in my favorite 2240 build that I want to use again in this new build is the pro top valve by anthony r. I lost his info and was wondering if anyone can help me get in touch with him if he is still around. This new build will be using a stock 2240 in pistol form converted to .177 with a lothar walther barrel, extended hollow probe bolt, steel breech, canadian transfer port, lightened hammer, delrin valve stem, disco valve body, and rear hammer spring adjuster. It is going to be all about efficiency and low noise and I need a self piercing valve like the pro top to make it work. Any help would be greatly appreciated. Thank you.