I have several Aerotech DMS motors (H, I and J) that I would like to use on my dual deployment rockets. For the rockets where the optimum delay is less than or equal to the maximum 14 second delay in those motors, I was going to drill them to be a little longer than the optimum delay so they would act as a back up for the drogue chute. I have one rocket that has an optimum delay of 18 seconds for the J270. Would it be OK to just not put any BP in the ejection charge area of the motor, thus solely relying on the drogue chute charge from the altimeter? I have never flown a DMS motor without using the ejection charge so I want to be sure there are no unintended actions.