As for Lama Tharchin, who can describe a mahasiddha? He was humble beyond
any reason. Rinpoche's kindness was not limited to teaching.
I was on Lama Tharchin's property a few times with other teachers 10-20 years ago. Lama Tharchin greeted me warmly and shook my hand in passing. His eyes were so welcoming. yes, mahasiddha.
... and once for a special celebration with hundreds coming worldwide in the 90's, something that only happens every 13 years or so. I went with a friend. It was high ritual, the sangha created all the costumes for the dances. wow!
As for NCR, I take him at face value. I don't understand the controversy, nor do I want to... I never knew about it.
I first met him over 20 years ago. My friend was his disciple. I went with her to a weekend with NCR at Lama Tharchin's place. I was new to Buddhism, I knew nothing. The next time that I saw NCR was last fall in Berkeley teaching the Five Wisdom Emotions from a dzogchen perspective.... from his book, Spectrum of Ecstasy. I can't remember if this is the re-write or the original book.... they both deal with the same material. (possibly, the old title has colors and/or rainbow in the title) Little that I know, he's using colors and emotions to gain a view, a model of energies. That's vajrayana to me, but dunno much. I thought it provided a basis for understanding powerful emotions, presence of awareness, trekchod. But it went far beyond psychology. It seemed to me to be a way to live the dharma. He seems the perfect person to teach it. I can understand how some ppl on this thread, who are associated with him, can communicate free of reactivity. That seems to be what he means by "Spectrum of Ecstasy"
Here's a review of the book from Shambala:
Here two Western-born lamas of the Nyingma tradition of Vajrayana Buddhism explore what it means to be utterly emotionally alive. Written in contemporary, nonacademic language, this book is a radical challenge to the misconception that inner Vajrayana is primarily an esoteric system of ritual and liturgy. The authors teach that emotions can be embraced as a rich and profound opportunity for realization. This fiercely compassionate battle cry rallies all who are audacious enough to appreciate emotions for their supreme potential as vehicles for awakening.