I acquired a large 7" rocket from a DARS.org meetup, I believe the rocket was originally owned by a member of DARS who had passed away and then given to the person I got it from. I would really like to fly it at a DARS launch this year for the club. I plan to outfit it with my standard dual stratologger setup but the volume inside the rocket is huge (i'm use to 3 or 4" rockets). For larger rockets, is it standard practice to add a bulkhead near the couplers to reduce the amount of space an ejection charge needs to pressurize and separate the airframe pieces?