I have just received an Isa Brown about 6-7 yrs old, she has very long toenails and her toes are bent because of this. do I cut her nails down past the quick - which will make them decent length, or do I just nip a bit of the end of toenails (up to the quick). She does need a cut past the quick to get them to a decent length - is this cruel/hurtful?