What is the current consensus these days on the use of case fillers in large, straight wall, pistol cases? I know about the pros and cons from the past. I would be using something like KAPOK or its modern equivalent ( whatever that may be ) which adds little weight to hold the powder in place. I did not like Puff-Lon for use in a revolver as it blew out of the barrel-cylinder gap and it was a pain to fill the cases with. Once I use up all my current stash of powder, I may switch to Trail Boss so I don't have to think about using fillers.