Anything electronic on any RTR is about sub par. Mid range needle coming out can be from no o-ring or too small of a o-ring or something else. Call HPI they will help you with any issues. Not all LHS will help you on warranty issue they will tell you to call the manfacture.

HPI website shows the mid screw is flush either see if there is a o-ring it there is . Or put sticky foam tape on it so it can't turn. I seen poeple use tire glue after sitting it on the outside.