Im so puzzled by this question i really gotta ask.
Now i put in Dom/switch in my profile because i sometimes like to sub a little but mostly dom. I dont know if im a good dom, actually i doubt there is such a thing, but i have a sub and shes happy with my style and was pretty messed up by a previus dom. So for her im better than another dom.. Good enuff for me its not like theres an award and even if there was theres no cash prize.
Am i a good sub? uhmm well if i was dom'ing myself id be perfect. For some smartass knowitall domme? Nah id be the worst sub that ever took your whip away and put you in your place. I switch on weakness and in a bad way.
Now as for being a good or bad sub. well whats considered good?