these are some of my cacti.all grown from seed and about 18months old.
the brigds (first pic) to the left have the normal genotype patern and have a tendency to twist by the base but the 2 fat mamas to the right have something else going... they were bought (seeds) from a reputable (kohres) cacti botanist.There is a possibility that the fat guys are something else that got mixed acitentally when they were shipped by seller or they might be a monster brigdesii genotype.they are fat and compact and it looks this guys are going to be BIG n FAT.the last picture are some torches sewed the same time and from the same seller.FAT guys dont look like torches either.
AA battery.

Having just seen those Cactus photos, and listened to that FANTASTIC VIDEO LINK-aFTER 30G CACTUS POWDER INGESTED, let me say...it's nice to meet you! ;-)

Enjoy!

never have i ever known an active trichocereus to have more than 7 ribs, but then again im specifically dieted towards achuma!

upon review it seems you have 7 ribs not 8+ as i originally thought, seems to me youre in luck!

I've seen active fat blue peruvianus grow 8-9 ribs.
those plants on the right in the first picture look like peruvianoids

upon thought I belive youre right they are peruvianoids, hybrids might be.bridgesii/peruvianus.but they are not tall like torches or bridgesiis .btw today i finished repoting my collection.
I not sure if the rib count is important, because I have asked people who have lots of experience cultivating cactus and and they say it has nothing to do with potency.I have read also the contrary, shamans praising 7 rib cacti and the legendary 4 rib cactus (4 winds)...

this makes no sense, plenty of active species with variable rib count over 8....