With my Hubba, same as Bearpaw, for pretty much the same reason. One of the things that makes the Hubba heavier than other solo tents is that heavier weight fabrics are used in the floor - but that also eliminates the need for a groundcloth. If the tent is made from lighter weight materials, more vulnerable to abrasion, a groundcloth may be advisable - and some of that weight savings evaporates.