Cool upgrades.
Do you notice any vacuum difference or any engine sound changes since the upgrade?
On the wand, that 4 jet bar looks pretty low, are you getting any streaking, you can always raise it up a 1/2", a small change like that across 14" can be quite a bit when talking 110º jets. 012 flow right? How does it clean? Have you noticed the new jets throw less steam/humidity in the air?
You could probably slide the jet manifold back a bit more with the oval bolt slots,this would position it more in a 45º angle, might have to bend the mounting tab a little to pull it off, but more shear angle will allow higher pressure without fear of overwetting/underdrying.
That LP heater looks like a flame thrower, how is that jet type working out, does it heat the whole coil evenly? I'll bet it has wicked heat with the 012 flow wand.