if its actual peruvians I would eat 2 feet but more than likely they are not peruvians show a pic and I can tell you what you got
because cacti identification is a complete clusterfuck of a system. some breeders were given a cutting years ago and told it was t. peruvianus but they may really have a t. cuzcoensis or just some kind of trich hybrid (which does occur quite often in the wild). the vendors purchase cacti from these breeders and then sell them again unaware that they are the wrong species.