Definitely Irreplaceable Ultra Light. I lost my first one, maybe on the trail. If you find it, you’re welcome. So I picked up one of those ethereally light ones… I could never manage to excavate the mandatory 6” deep cat hole due to rocks and roots. I’m expecting a sternly worded letter from the USFS Cat He Inspection Division any day.
Now that I have my replacement, I once more will laugh derisively at rocks and roots as I exercise dominance over the earth (purely from a cat hole digging point of reference and with great respect for Mother Nature).