Such a great attaint master who practices Lord Shugden and also a great tantric master that specially emphasize on the tantra of Heruka, Hayagriva, Yamantaka, Gyelchen Shugden, Guhyasamaja, Vajrayogini, Green Tara, Mahakali, White Tara, Vaishravani and others. If Lord Shugden if a spirit, how can such a great master practices spirit and able to practice the rest of the tantric practices? Doesn’t make sense. In fact if one practices spirit no other tantric practices you can gain result from.
Look at Kyabje Zong Rinpoche the great scholar and also a tantric master has even come back to this live to continue to benefit others, how can a spirit practitioner reincarnated back and being recognized?