Prior post: Brass doubling?
Boston Symphony Orchestra bass trombonist Douglas Yeo has a page on his website with doubling tips. In addition to bass trombone, he plays bass trumpet and serpent. Not tenor trombone.
I don’t knock anyone for finding their niche. And Mr. Yeo is clearly a very accomplished musician—listen to some of his sound clips if there is any doubt. But I have to admit a few items from his doubling tips amused me as a woodwind doubler.