I've never had any luck with just spray, the only stuck cases I've ever had are when using only spray. What I do is clean my sizer and spay the inside of it with Hornady One-Shot, put my cases in a block and spray them, and ALSO keep my fingers greased up with Imperial wax and give them just a tiny bit of rolling between the fingers. If I don't use wax I have problems, doesn't matter which dies or what rifle caliber I'm doing. That Imperial wax lasts so long it's crazy, the little bitty tin that came free with one of my Redding dies has lasted me 3 years and probably close to 10K cases.
Then after sizing I toss 'em in the tumbler again, so I always size enough to make another tumbler run worthwhile.