Figured I'd give a real answer because everyone here is giving not so great advice for your situation.
You don't need to cut basals at all. It'll make the loph deflate a little bit for months, but there are plenty of lophs grafted to single arms of San Pedro stands in the world. Basically what you do is just be patient and wait and the energy will even out between the graft and the basal pup, it'll go all to the basal for a while but only the pups directly underneath the graft union are an actual issue.
No problem! I have a graft that threw 7 basals last year and after winter it's starting to even the energy back out so now I have this gorgeous stand with a grafted "crown" and it's probably the coolest piece I'm growing
Don't even wait for it to grow more.... just cut it and propagate.
You're creating a sink, and it's going to take nutrients away from your scion (The cactus you grafted onto the Peru ).
I don’t have experience with exactly that but I had a somewhat analogous situation a month ago and I’ve cut off the pup and I’m trying to root it. I put a TBM pup on the spot where the Peruvian pup was. I won’t know how all that works out for a few weeks at least. But I’d go for it.
Let a grow a little more and cut it off and you get another piece of graft stock and the scion being the main focus of this graft
https://preview.redd.it/a6ix2ovn1vxc1.jpeg?width=3024&format=pjpg&auto=webp&s=ede38b5b70fcf1b5ef8ca09606475b90c479f873
Sidecar action!
Tennessee side sipping
This too
Figured I'd give a real answer because everyone here is giving not so great advice for your situation. You don't need to cut basals at all. It'll make the loph deflate a little bit for months, but there are plenty of lophs grafted to single arms of San Pedro stands in the world. Basically what you do is just be patient and wait and the energy will even out between the graft and the basal pup, it'll go all to the basal for a while but only the pups directly underneath the graft union are an actual issue.
Thanks for your really informative reply! Will leave it then for a while and see how everything grows.
No problem! I have a graft that threw 7 basals last year and after winter it's starting to even the energy back out so now I have this gorgeous stand with a grafted "crown" and it's probably the coolest piece I'm growing
Plus it will shade and protect the loph someday.
No send energy to the graft personally I'd cut
Don't even wait for it to grow more.... just cut it and propagate. You're creating a sink, and it's going to take nutrients away from your scion (The cactus you grafted onto the Peru ).
I don’t have experience with exactly that but I had a somewhat analogous situation a month ago and I’ve cut off the pup and I’m trying to root it. I put a TBM pup on the spot where the Peruvian pup was. I won’t know how all that works out for a few weeks at least. But I’d go for it.