I've just bought one. Well a Caberg flip, god knows which model. My old one was an outgoing HTC regular bought on sale at the NEC. Not sure I can notice any wind noise extra, but FF are definitely heavier. I can notice it in the shop but on the bike I'm ok. I find the flip front can feel claustrophobic at first as it sits a lot closer to your face. All in all...I'd go flip because its handy for chatting at the lights or when you stop for a minute and I find it easier to put it on, but it really is just a personal preference. Tend to be a bit more expensive presumably as there's a bit more work required to make them. No safety issues any more, they all go through the same tests. If you need to wear glasses then FF is the way to do things. I know sports bike guys who can get a bit cagey about FF, one of those daft image things.