Yeah Robert, your northiana is elongated form. Nice.
The pitchers are getting bigger, nearly 4"! Oooo.. how impressive.
After I placed mine at a more sunny spot, it's now started to produce bigger pitchers too. But those new tiny pitchers (newly formed) that get direct sun light just don't balloon up but pitchers that grow under the weeds. I wonder if this is really caused by the heat of the direct sun. Will still observe.