Do not substitute bourbon for rye merely because both say 101. Role and exact product matter; these recipes are not a matched-proof comparison.
Amaretto Sour144–147; Always Forever338
Urushido's Amaretto Sour specifies Wild Turkey 101 rye. Natasha David's Always Forever instead specifies Wild Turkey 101 bourbon as a 0.5-ounce modifier beside larger measures of umeshu and Cocchi Rosa.
PDF 338
PDF 144
Amaretto Sour144–147; Always Forever338
Original paraphrase and locators checked against full text/images1–569. Verification concerns source fidelity, not independent truth. Explicit subranges identify grouped passages. Native attachment and preview verified; local unchanged copy retained.
No access / Whiskey Excerpts Database (USWA)
Original paraphrase of source evidence, not a direct quote or independent corroboration.
Evidence
Urushido's Amaretto Sour specifies Wild Turkey 101 rye. Natasha David's Always Forever instead specifies Wild Turkey 101 bourbon as a 0.5-ounce modifier beside larger measures of umeshu and Cocchi Rosa.
Location and context
No access — supplied PDF 144–338. Exact section/subranges: Amaretto Sour144–147; Always Forever338. Reflowed PDF; no invented print offset.
Annotation
Do not substitute bourbon for rye merely because both say 101. Role and exact product matter; these recipes are not a matched-proof comparison.
Analysis: 
Verification checklist
Native PDF attachment and preview verified; unchanged local copy retained.