Wally, you want this stuff, not spray:
{Moderator edit of photo. See forum policy on posting copyrighted materials. Sorry for the inconvenience, but that's how the lawyers roll.}
Don't bother with a "lube pad."
Just squeeze a #2 pencil-lead line of the stuff below the shoulder of the case about a quarter inch long.
Use your thumb/forefinger to wipe/distribute it around the case down torward the base.
Size.
Pick up next case and use the residual lube on your thumb/forefinger to lube the next case....
...and the next
Then apply some more to the 4th/5th case and start the sequence again.