This stone seems to have been carved with utter care, joy
There are many details like the open loops of the knot,
cryptic runes and finely crafted runes. Erik often looked
for shortcuts, but it seems as if he wanted to do especially
well here. However, there are still some minor mistakes,
probably due to inexperience.
I would guess that this stone was carved in the middle of
Erik's career, as the carvings were done with routine and
I also think the stone was raised close to
Erik's home. He worked with passion and joy and wasn't in
any kind of hurry.
I wonder why the snake is missing its tongue. Maybe raking
light would make it visible.
Below, you can see an article in Swedish on U 1165,
taken from the book Upplands Runskrifter.