Thanks for the congrats and the welcome!
Was kind of hoping our luggage would be checked through for SFO at LHR, but if we're having to collect it and re-check in that's a pain. Good job we opted for the big gap between flights!
We'll also be flying HNL-DFW-LGA later on in the trip with a similar gap, but hopefully there will be fewer issues there because of them being domestic flights.