Very educational...much different from Thai forest monks .
The outward form of their practices is quite different, I agree. But there is a kind of abiding peace, calm, wisdom and serene joy in many of those Tibetan monks, that I have also seen in 'our own' Theravadan monks. I also see that, they both have in common an emphasis on the purification and training of mind
as being paramount.
I'm certainly not recommending anyone switches over to those practices by posting this! It was essentially for it's inspiration value. In terms of actual practice, I still recommend digging deeply into the original pali sutta nikayas for guidance. Having said that, as far as I know, Tibetan Buddhists do actually accept the pali tipitaka as well, if I'm not mistaken? Sure they have also added a few things, but at the core of their teachings still lie the Four Noble Truths, I thought.