I understand there are issues as to why they are used such as cost and proximity to the line. However, as someone who has been around dogs a lot when either live rounds or regular poppers have been used, the dogs' steadiness is definitely tested much more with fully loaded poppers. I've seen way too many dogs that were steady with primer shots start creeping, get up and start walking or flat out break with full poppers. My point is that in a real hunting situation, how many of those dogs would break? In field trials, even with some of the distances, the full poppers still create a lot more interest for the dogs than primer poppers at a much closer distance. Given that, does anyone know why they're even allowed in hunting tests since steadiness is supposed to be tested?