Erik Schmidt's anthology, with a new title ("Perfect Clarity"), additional chapters and without the previous restriction, is once again available after long being out of print.
"All the sublime teachings, so profound--to throw away one and then grab yet another will not bear even a single fruit. Persevere, therefore, in simply one."
--Dudjom Rinpoche, "Nectar for the Hearts of Fortunate Disciples. Song No. 8"