Biggest issue I have had with the primer system is dust and dirt. Keep a can of canned air handy. However fromwhat you are describing it sounds like part # 8 (exploded diagram at back of book) needs adjusting. Hard to tell without being there but the first you and him need to do sit down and watch the CD that came with the press, all of it. Secondly call Hornady's toll free customer service number if you stil can't figure it out. They were very patient with me. They will spend as much time as needed to troubleshoot.
On the powder drop tube I have no clue what you are referring to,the 3 drop tubes just slide down into the measure from the top, there are no springs that hold them in. Once again, get some ice tea and popcorn and watch the CD. The instructional videos on it are great
Government is like a baby. An alimentary canal with a big appetite at one end and no sense of responsibility at the other. - Ronald Reagan