Does anyone know where I can find the official guidance in full? This would be really helpful. I feel like I'm a bit blind. The reason I'm a bit perplexed about travel/submission timing, etc. is that I received a notice that my current mortgage rate scheme is coming to an end effective 1st Feb. The application asks you to provide documentation about your living arrangements and how much the cost of accommodation is. If I wait until I return from my trip, my monthly mortgage payment will be different, although I won't have paid a different amount yet. Whether I change my mortgage offer now or wait until after submission, either way, the monthly payment will be changing. I will be in a weird limbo position that my mortgage payment will technically change on 1st Feb, but I won't make that payment until the 22nd. This is why I'm trying to rush to just submit right away. We do also have a few decisions to make around which mortgage product we are going to switch to, etc., so I really hate to either wait until our current rate has expired or rush into a new one just to satisfy the answers of my visa.
I also thought that I read here that there was no longer a spelled out requirement that you could not travel with a pending application, although, once you attend biometrics you wouldn't have your BRP any longer, so obviously you couldn't travel then (I'm not arguing with the helpful advice given, as I tend to agree about not travelling just to be safe), but it would be helpful in the entire process to see the guidance.
Also, I have already paid for my Land Registration document; dated 14th January. If I wait until first week of February to hit submit and pay, should I get a new one with a fresh date?
Thanks again for everyone's help here.