Hey Phil!
How old is your KB? If you had it for 2-3 years, it may be due this year. Mine was four years old and finally produced this year ( after some serious pinching). It was worth the wait, though. I also am a huge fan of rdb. I love it for our area because it meets the three criteria.
(1) it is early - first week of August usually.
(2) it is very productive and delicious.
(3) it is definitely hardy for our area.
I can send you some rdb cuttings if you'd like. I think if you have the room, you should have both! I would be glad to help. PM me if you want a few- they root easily, too ( so I guess it meets 4 criteria)