Much the same as you I’m not a frequent visitor to LFCC even though I don’t live too far away .
This year I initially decided to come on the Saturday as one of the guests was a Saturday only , which then changed to Saturday and Sunday after I was committed with ticket purchases no diamonds was just going for vq
As more guests were added and the schedule published there was an opportunity to get some photos and autographs on the Friday evening , there was no queue when I got there at 5 , easy to get round the stalls and completed what I wanted to do.
when I checked the weather f/c I realised that sitting in the rain for several hours on Saturday morning to get low vq for a couple of guests was stupid so for the first time I bought a diamond and had a lie in but then panicked that the queue would be crazy so got there at about 10 and in the venue by 11, in retrospect this was a stupid idea by me as it became apparent by about 1 there was no real queue and people were just walking straight up to the ticket gate ,so I could have rocked up then and still got it all done however Saturday was crazy busy and I had problems coping with the crowds .
one of the photos I had done on Friday was not good , I was too disheveled and had chance to go on Sunday and meet the guest again and this was much better, there were still quite a few guests still there at 5pm will little or no queue
SO if I went again I would go either later on Friday and Sunday which gave me more time to look at the stalls in reasonable comfort , get my photo ops done though if I wanted things signed arriving that late it would be diamond purchases
all this probably wasn’t much help,in your future decision making but using the schedule worked to my advantage this year