I just did this the other day. I used Klippermate racquetball supreme and it was the worst stringing experience of my life. There was so much lubricant on the string that it kept slipping out of the clamps; however, that just may be that particular string. I'm not really sure how it plays because the feel of it in a hybrid in my youtek and flexpoint was considerably different.
Careful! Some racquetball strings are only 38ft!(ektelon) and some can only handle LOW tension(eforce oxygen)
I have my racquetball clients use tennis string.
Ektelon and Prince are identical.