Was needing some bridgesii material as mine are growing very good and I'd just hate to have slaughter them.I found river source and while they have good reviews their bridgesii states that it's call san pedro by locals so I'm not sure which it is.I'm thinking of going with the d-limonene method too get more alkaloids as I hear these are the most desirable.If anyone can point me in a good direction or that has experience with cacti from river source please post.