I actually have the "hand grenade" GOSOs, the Spooxe and the Southord. The Southord is bad for a number of reasons IMO. The edges are very squared off and it's too thick to use in really tight keyways, plus I don't like that it's interchangeable - sometimes I use two or more different picks and it's not possible with the Southord, not to mention the wobble is unacceptable. Even when I REALLY cram an attachment into the handle, every so often the collar loosens. Whoever designed that thing really went for looks over function and I'm sorry I purchased it.
The GOSOs are decent but I like that the Spooxe are nicely rounded and come in different thicknesses. I'm sure if I had the time I could sand down the GOSO set but right now I don't have the time for it.