For me 2C-I has a bodyload that resembles a stimulant the most but it is also not unlike 2C-B and not really that heavy. It feels like an energy current, really.
2C-T-7 has a more difficult complex bodyload that is less clearly defined and not simply asking to be channeled. Though if it is not channeled it can apparently translate to a weariness and a sort of nagging nausea. All the other effects are totally worth it but for the first hours its not really great.
It reminds me of 2C-E's body load which is a difficult one as well. Both are highly variable though, and even if it isn't clearly apparent both (if not all) types of bodyloads have to be addressed and dealt with if you don't want to feel iffy. If you respond to it adequately you can limit it to the discomfort that is natural for a transition period. It's a shame to get stuck in it because it is 'blocked from flowing'.