Very dissapointed with this product, I received it in the mail on a friday. The shell took forever to get everything to fit in just right and then I had to do my best to try and screw these horrible little screws in.
The next day I used this shell in my local Saturday rec-play. I had one break inside the shell and somehow acquired a crack along the top of the shell. Now I never took any big slides or falls and this thing up and cracked on me.
For spending $30 on a hopper shell I would certainly want something easier to use and something much more reliable. At this point I would say the stock shells are two times better than these shells.
For the record, I could get my stock halo shells open just as fast as the warrior top. The tiny screws can be difficult to take out and the plates they screw into fall out.
I would not suggest buying this product. It certainly isn't worth the money and I am less than impressed with it's reliability.