Srila Prabhupada OTBGAII 8.10:

“One who, at the time of death, fixes his life air between the two eyebrows and in full devotion engages himself in remembering the Supreme Lord, will certainly achieve the Supreme Personality of Godhead.”

Hayagriva:

One who, at the time of death, fixes his life air between the eyebrows and in full devotion engages himself in remembering the Supreme Lord, will certainly attain to the Supreme Personality of Godhead.

Puppy Jayadvaita:

One who, at the time of death, fixes his life air between the eyebrows and, by the strength of yoga, with an undeviating mind, engages himself in remembering the Supreme Lord in full devotion, will certainly attain to the Supreme Personality of Godhead.

Hayagriva deferentially respects Srila Prabhupada’s rendition, whereas puppy Jayadavaita impudently feels a need to correct Srila Prabhupada and add “by the strength of yoga, with an undeviating mind” But Srila Prabhupada is perfectly aware of “yoga-balena”, as he develops it extensively in the purport. He just decided not to mentioned it in the verse and thats the way it should stay.

“What is that English proverb? “Fools rush in where angels dare not.”

Ref. VedaBase => Conversation on Train to Allahabad – January 11, 1977, India

Hayagriva however, completely ignores the subject matter of sat-chakra-yoga which Srila Prabhupada mentions in the purports 8.10 and 8.11. To his credit, Jayadvaita restores it in both cases. .