The problem with the hole in the closure is more likely due to shell length. A session with a caliper and you will find the Remington shells and compression formed AA average about 69mm, the AA HS about 68mm. They all vary slightly. The basewad in the AA HS takes up sufficient extra room so that the overall capacity of the HS is slightly less than the old style AA or the current Remingtons and being on average a millimeter shorter doesn't help. Thus, the pain in the ass part.
The easiest way to control stack height within reason is with wad pressure.
I don't let free AA HS hulls get away. They are useful especially for older repeaters that like brass headed shells. You just have to master your equipment to produce good loads.
