GDV yup 5744 am good stuff. I shoot several pounds of it a year. I do find it works better in 40bore and up, than it does 40 down.
I have not used any filler until the other day when messing with some 400 gr snovers intended for the 40-65, in the 405. Was messing tying to get them to group with not much luck they were just a touch undersize. Then I recalled a fella on another board that uses quite a bit of 5744 saying that he used a 1/4 toilet paper square rolled up and stuffed on top the powder. So I decided well why not. Presto groups came in respectable, and after I figured out that 38 type sight didn't need to be all the way up to shoot the 800 yd target , we started ringing the bell waaayyyy out there.
I have used waxchecks quite often with 5744 especially when shooting really soft bullets.
I like the stuff quite a bit, and always kinda figured that the folks whining about the old maid kernels it will leave behind are probably pretty much girlyman shooters anyway.