Short injectors?

I'm not going to say yet. I don't think it's a bad design and there are several sets out there being used. I think that either I have short injectors (don't know if there is a shorter injector) or the vendor may have got a bad batch of clamps from the supplier.....
I'm just feeling this out. I'll make the rails work because they really are nice but I'm trying to figure out the problem before I make any mods.
FWIW, my engine is a 2010 6.1 from Cleaveland Power and Performance with 17k on the odometer. All stock so far.