Wow, lots of answers and opinions!
To clarify, we've had no rain since about october, so 4 months or so. The dirt where she is has a lot of clay so its very drying.
She has great feet and I love that they are so rock hard, (lbs not miles, your granddad would love them, can't hardly scratch them with a good hoof knife
), but she dislikes getting them trimmed.
We are working to get her more comfortable with trimming and foot handling in general, but I figured that the easier it was for the trimmer, the quicker it would be and the less stress on the horse.
I've got no interest in KEEPING her feet soft (our usual wet winter will do more of that than I like in another 3 months or so) , just need a temporary softening.
I think a half hour or so in some water before trimming will help enough for what I want.