Want to do a G or < size dual deployment model that uses heavy cardboard tubes. Instead of shear pins I thought if clear shipping tape might be workable to hold the electronics section together to the upper or lower section. Also which section contains the drogue or does it matter which blows first? I thought the upper section would contain the drogue and lower the main. Anyhow I want to do a smaller model as I have a smaller field to fly from. I also saw some of the larger models using it and it looks cool. Acquire the skills on a smaller model and when going to level II it might not be so traumatic.