I know of three quite large herds in Canada, Grassfarmer, all developed by importing embryos from both Zimbabwe and South Africa, the three old girls in the pictures were born in Canada out of Zim embryos. I would never have recommended the Tuli for the type of conditions so far north, but the reason they were imported was to sell them on to the USA, Mexico, several Caribean islands, Argentina and Brazil. They do, however, seem to have a following for cross breeding in Canada, there is also interest in the Bonsmara herd in Alberta which as a composite are probably better adapted.
I did not mean to imply you were incorrect Grassfarmer, I am just surprised that a Tuli would be so ill tempered, there has also been a tendency for people to mistake Senapol for Tuli, they are entirely different genotypes, but are phenotypically simlar, thus causing some confusion.
Per, the Tuli varies in colour from deep red to white, reds are popular for crossing with Angus to compliment the reds and to throw black calves from the black Angus, the red Angus/Tuli is by far the most popular cross in the USA, whites are diluters so will not throw black calves.