Never grew critical mass which i believe is just bigbud?

But i've just finished my first crop there of killers skunk and i cant praise it enough, the yield was decent the potency is great and the flavour is superb.
I had 15 plants and the highest yielder was 110g but the rest were between 90-100g and the best killer skunk yielded 94g so it was up there with all the other plants and strains.
Mine actually got savaged by LSF and had lost nearly all the fan leaves so with them the yield would defo have been higher so ye i'd have to say its a good yielder

It kind of depends on grow style to, if you use your space right i think you could yeild nearly the same from any strain, i always seem to hit the 500g mark with 9 plants under a 600W HPS in 6L pots.