Just as I thought. Without the shell, and then with the N and V shells, I downloaded TEC to 30. I thought it would be more with the P shell, but no. On the statistics screen, TEC=30 is highlighted in pink (MAX?). (If it matters: I've been playing since day 1, used the multiverse pod.)
Got it.
Sorry, my oversight. But there's something else: for “Weapons Crate,” the “Open All” button doesn't work, and for “Exclusive Crate,” even with “Open All,” it opens one crate at a time.