Something to keep in mind on the Silencerco, the guy I purchased from tried the different end caps on a .223 and the .458 end cap wasn't any louder than the .223 end cap. Something you may want to research further, that could be a considerable savings there.
Interesting. Not necessarily specific to the Hybrid, but some reports I've read have said that caliber specific end caps can make a noticeable difference. There's a lot of companies doing that now. At least if it's still effective then I could definitely save some cash up front. Then just add them later as I felt like it.