MTT / STT boundry?

Sorry for the 'noobness' of the question but I wondered whrere in the grand scheme of things something like a 30 player tournament would be.

Can it be regarded as a STT on a slightly larger table or does it play more like a true MTT?

I aks because I seem to do better in these 30 player things than the traditional 10 player ones and I'm not sure if I should look here (treating them as MTT's) or on the STT forum for advice, hints etc.

Thanks in advance