As a recording engineer and ir producer, I always remember something a mentor of mine Bob Both (James Brown) said, "You can always cut later to fit something in a mix, but you can't put something back in if you have totally eliminated it." I always tried to preserve the tone of a player in tracking unless the player specifically told me he or she had problems getting a specific tone. Then decisions of how to shape it can be made in the mix when hearing all the parts together.
That's my same approach when producing ir's as there are so many variables with pickups, playing styles, strings, setups, instruments, and song arrangements, it's difficult to predict a "one size fits all" approach to cuts. In that case I historically preserve the given cabinet using the mics I have, give some ideas with mix ir's, and let the player or engineer make the specific taste calls.