Seems that way from the one case break I watched. That was Diggaz.
Counting hits from the GCTC case break (and priority box), there were 58 (not including case card) numbered hits. Take the three priority hits out that is 5 per box again.
I opened my case early this morning, got an Inglis Masters Sig, Panthers BD mojo #1/5, Manly patch signature redemption, Titans spotlight patch redemption, Hudson Young LSB, The Hammer LSW redemption, Steven C Dogs LSW, 4 x YG Black sigs and assorted other numbered hits. Will post was is available for trade on the appropriate thread.