Cailet is now sporting lovely hot pink front pawnails (I am not a terribly pink person, it was the most insulting color I could think of; which is not to say it does not look absolutely lovely on other people, I just think of Cailet as a very Goth cat)
I burritoed and manipulated her paws, roho did the gluing and application. We had to rewrap her a few times, she was most displeased. But she didn't bite me, and her struggles were more the 'get me out of here' than 'I'm going to eat you'.
Overall, a great success. Looking at the softclaws themselves, I have no doubt that this will ease the destruction. I am going to wait a couple of days, then perhaps apply them to her rear claws as well, as both cats like to launch themselves violently.
I don't mind buying more if this will solve the problem.