We have been very happy with our previous Canadian compliant products.
We have not had any reason to treat these 10/30 bodies any different from a 10/33 glock magazine or other limited pistol magazines.
Gilboa in Israel manufactures a dedicated bufferless AR style pistol that ships with dedicated factory thirty rounders. You might have seen them in the cornershot system.
We have been warned by industry organizations that pursuit of Beowulf of multi-caliber magazine solutions may not have long term viability. We haven't heard anything more than what you read here in regards to Beowulf, but we're not about to spin up that kind of project based on the current environment.
However, we have had no problem with regular customer shipments of any of our riveted rifle and pistol magazines.
We do include a CBSA disclaimer with all our Canadian magazine shipments detailing how we limit the magazines (spine rivet) and the relevant sections of the criminal code.