@stoveliker , enjoy your play time. I like big splits, I cannot lie. But I also like littles when paying woodstove tetris in deep winter. The more wood I can cram in there, the warmer I can keep the house to the next reload. If it is laying near the splitter and 16" long, I stack it, even the pencils. Perfectly good BTU value in 16" pencils, and they can help fill little spaces between bigger splits.
I don't sort my wood by size when I stack, I just stack it all. When I am pulling wood into the garage from the stacks, I don't sort it by size, I just fill the sled and drag it. When I am loading up the canvas tote from the garage to the stove room I don't sort by size, I just bring it. When I have my fuel on the hearth, then I sort by size, bigs first unless I need some E/W mediums behind the coals, then mediums, then littles, then pencils. Works for me.
When the time comes you will have, apparently, no trouble with 12 hour reloads at a higher throttle setting, you're knocking out 20 hours on low with consistency which is lovely, your wood very likely is dry, I would guess 16-18% by my meter. On a new install you likely have a slightly overactive cat that will settle down a little bit in a month or so. It isn't broken, it will be broken in.
When you are bored with long burns, try woodstove tetris.
Woodstove Tetris. Oak slab wood, I have had much tighter loads, but will save that for when it gets colder. There is a lot of BTU in this load and I love that the BK is airtight enough to control it. I believe this was an easy 16 hour burn, with heat to spare, outdoor temps were teens at night, about 32 daytime.