I agree there is some worry about the spring. I just like the idea of the two position suppressed / unsupressed. The metering screw on the SLR worries me from an erosion standpoint. I don't think either option is exactly what I am looking for: 308 Switchblock. I think I am going to give the Govnah I try and then we'll compare notes.
Deal. My go to online supplier got me my order a day earlier than expectsd so I had a box of parts waiting for my when I got home. I love paying for ground and getting next day service. I am still waiting on 2 more immediate deliveries and one from Vortex Optics that could take a bit. Also, found out that Dustin's lathe will be back up running this weekend so I'll be dropping the barrel off sometime before Friday to get cut/threaded. Looks like I should be able to make it to the range next Thursday, albeit with an underpowered optic.