Mixer like that is normal on all my Panshs. It's far from ideal I guess in a way. Correcting for pulley line shrink it is nice to just line things up, but as I posted viewtopic.php?f=197&t=2392205
the flysurfer way is not perfect and in fact if you start using the mixer to correct for upper bridle shrink, things end up uneven anyway, so there is not much point to a mixer test then is there :-/ Except you can restretch bridles and set a mixer level and everything just works...well for a while...
Good that you like the kites and that they are good. I would ignore windrider he has a serious chip on his shoulder about pansh. I can see on the Panshkite facebook group a few others are enjoying the Aurora 2 as well. 3kg for 19m nice that is 157g/m2 and a tad heavier than the 22m at 3.4kg or 154g/m2, the Pulsion is the lightest currently at 141g/m2 but only comes in 12m and is more expensive. The Pansh Ultralights are in second place beating everything else though LOL, some brands should be embarrassed. Of course flysurfer has better design and quality but not by a massive margin, the price difference though as you say is massive. Who would have thought foil kites would end up being the cheapest kites to buy. I actually think even though flysurfers are expensive upfront, for the amount of hours they last they were cheaper than all the other brands in the long run, except pansh now obviously
You don't have enough depower on the 19m, maybe the bar throw/trim is limiting the kite. I know on my A15 it requires quite a lot of bar throw/trim but then it has a unusual B placement on the kite that is very far back and so requires more throw/trim because of it. I think the Aurora2 is not like that? the aurora 1 wasn't. You can test the kite flying it on the ground from the mixer, place each hand on a pulley line between the A main. From there you can see if it depowers onto A or A and B or if it can fly just on A. Otherwise just adjust your lines/trim I guess or try depowering it by grabbing the depower rope or front leader and see if you get more depower or B bridle goes slack. If B goes slack there is no more depower. If it doesn't you may have something limiting it like the bar etc, or if you don't you have the option of modifying it to depower more at the risk of some instability or collapsing.
Try shortening B or lengthening Z on the 12m.