The difference in how I explained the same achievement to two different letter writers

Had one achievement that two different letter writers were going to speak to from genuinely different vantage points (a direct collaborator with technical depth, and a more senior figure with broader field perspective but less technical involvement), and tailored what I asked each of them to focus on accordingly. For the direct collaborator, I asked for specific technical detail about what we actually did and why it was significant — the kind of granular, checkable specificity that comes from real hands-on involvement. For the more senior figure, I asked instead for their perspective on how the achievement was received or regarded within the broader field, since that's the vantage point they genuinely had, rather than asking them to speak to technical details they weren't as close to. The result was two letters that complemented rather than duplicated each other — each writer speaking authentically from what they actually knew, rather than both trying to cover the same ground and ending up somewhat generic as a result.