So, I've looked and looked, and I'm sure I'm missing it, but here goes: I have two video clips, that I've synced via the clap, and then dropped the audio on one (one uses nice XLR'd mics, the other is just iPhone audio). Is there an easy to way to alternate which clip I want to keep, in terms of doing cuts? Obviously not an issue with split-screen or picture in picture. I suppose I could just zoom in all the way, but it'd be nice to just be able to go from clip to clip, and then cut out the stream I don't want for that given moment. Another thing: when using two iPhones for the video, I'm golden. When I use a Zoom Q4n or Sony A6000, even at (allegedly) the same fps as the iPhone, I get drift in iMovie. Is that because one may be 60fps, and the other is actually 59.94 or something? It lines up at the beginning, and then the clips drift from each other. I'm thinking that's what it is, since like I said two iPhones both set to 60fps = no issues.