Hi everyone, I don't have much experience with altimeters in the nose cone.... My experience is limited to data recording altimeters only. So, now that I'm putting the altimeters in the nose cone that will control my ejection charges, I have a pretty basic question and want to know how others have handled it. The logical place for the vent hole would be to go through the shoulder of the nose cone and through the upper body tube where they meet. The nose cone would be secured to the upper body tube with shear pins, so that the vent hole does not become obstructed during flight. I am sensitive to the over-pressurization caused by the ejection getting through this vent hole and causing faulty readings. Is this something that I should be concerned about, or am i just being paranoid? The ejection canisters will be mounted to the base on the nose cone. I am planning on using the Missileworks screw switches to activate my altimeters. The hole to access these would serve a dual purpose as the vent hole. I appreciate any thoughts from those who have done this a few times before.