I LOVE using the Hubber Guardch wif da Gi. People have no clue what to do. They look at me like why is your foot coming infront of my face? But by then it's already much too late. I love getting to the Omaplata position (if'n I can't get my beloved Gogo)
and clasping my hands around the neck to finish with a choke instead of the shoulder lock. I call it the choke-a-plata!
I train both. A littel more gi than no gi for now and use 10th planet in the gi all the time. I actually just taught some rubber guard in a gi class today. All positive feedback from the guys I taught it to.