Your mold looks good. You just need to Vent the legs as stated. You can scribe lines from the legs on one side of the mold with a razor blade and then take the high spots off with some sandpaper. They may still not want to pour. Most small stuff is injected. I made a mold also for injecting but i still have not made a injection pot or injector. I had a mold made by a tackle maker then copied the design and made the second one myself with 50 cavaties. Also about 5 jighead molds. How well did your mold halfs line up? My first one sucked, drilling the dowel pin holes just didnt cut it. I had to go to circular pocket milling to get it done right. I even did 2 on the manual mill without a dro, and the pins were off by .005". The CNC was the best, takes a bit to learn the programming though.
