Well, my first year has been ... very educational!
It is very good idea to estimate measure of honey outside hives.
I am very good at this issue. You can learn when you weight the box before and after exraction.
Full Langstroth box, 70% capped, has 25 kg honey.
Full faffar box in my system has 16 kg honey. I use 8 frames in 9 frames space. So combs are fat.
When I clear the hive from honey, I can calculate the volume of honey. Often I took 60 kg (120 lbs) honey at one time. It is 2 Langstroth + 1 Farraf, all capped.
When honey summer is in the middle of July, 2/3 honey yield is in hives. Mostly I am able to predict my yield.
You can learn when you weight boxes and when you predicts are working, it is sign you have learned.
After that I can calculate, how much bees consume honey when wether is bad fo long time. In 3 weeks they consume 15 kg they uncapped yield.
It also important so see, how much more big box tower gather honey 5-6 box, and how much 3-4 box hive. You can see, that it is usefull to put together those 3 box hive, or you can make 2 hives from three 4 box hives. 3 hives x 4 boxes = 12 /2 = 6 boxes in 2 hives.
I do that much during summer. Or I put together nuc with one box full of brood + big hive without brood (after swarming).