I've been driving this FL SB for nearly 4 weeks now. I've done more than 2k miles now so consider the engine well run-in. Sometimes when I floor it, it feels like my head is getting snapped off my neck. This is good. Other times, it's really not doing it for me. I don't think it's TC kicking in, neither it is turbo lag. I'm always in dynamic (no, it really is; I know about cycling it after a cold start) so I'm confused what's going on. Anyone else have this feeling?