Sorry, I know there's various threads about this but couldn't find one like ours. (Apologies for not using all the acronyms - pretty new to this) We are flying first YVR to LHR. We then have a 10 hour layover and continuing on in business LHR to CPT (same day, terminal 5). I thought we were good from what I've read in other threads here. But then a blogger said that because our business flight is longer (11 hours) than the first one (9 hours) we would likely encounter pushback. True? And if so, would we also not be able to use the regular first class lounge at Heathrow? Thank you!