"pi" was meant to be pic, picture or photo. Most of the time typing I'm either fat-fingered or short-stroking the keys.
I don't have an USH, but a neighbor freind does. I would like to get one after handling his. Balances great and feels right. Simple, too.
He uses and highly recommends the Lightfield sabots, 2 3/4", blue colored shotshells.
I've also tried the Lightfields in my Mossberg 12ga. slug barrel. Very noticeable difference in accuracy with the blue ones and orange/reduced recoil compared to non-sabot Winchester and Remington's I usually shoot.
Have had a few slug shooters recommend the Lightfields.