Wax based lube flow properties are kind of strange. When first using a lubrisizer, it can take quite a bit of pressure on the reservoir to get any lube movement at all especially if the ambient temp is under say 60 degrees. Keep going, and after about 10-20 boolits lubed, all of a sudden the lube is flowing like its summertime.

I use FWFL almost exclusively, and really don't like changing lube. Consequently, I have bought a few Lyman 450's (for less than $20.00) for those times I want to use something else, primarily BP lube.

The big thing is that after a layoff of even just a month or so, there is still a learning curve to efficiently using this style of sizer.

Robert