Quoted from Completist:I have 2x 200amp panels coming into the house, with lots of room to add more circuits. I’ll probably go with 4 pins per 20amp circuit (with 12ga runs) which is probably a little overkill but the distance to the panels isn’t that far.
In my opinion this is not overkill, little extra cost for a flexible system with lots of power.
Quoted from Completist:Usually i would just use the height of my hammer to set the height and keep consistency. But is there a more optimal way when laying out an area specific to pins?
Mine are installed this way to be consistent in the house. I wouldn't install them higher up as things change - I had an outlet behind a wall mounted tv that is a wall scab now because I put a pin along the wall and removed the TV. Had to cover it up with a blank plate until I can remove and patch.
Code dictates how often along the wall (12 feet) but not the height, so if you want to go higher you can without adding extra outlets.