Tex,
For me the Break Point Pearl was longer, and then much stronger off the friction, but then would give me a flip-set type reaction. The Break Point Pearl was super skid flip for me, where the Shredder is much more continuous after it hits friction, and not as flippy.
Also the Shredder flares a lot more then my Break Point Pearl did. The Break Point Pearl was a very unique and special ball for me, and I haven't thrown anything else that really reminds me of it.
Hope this helps.
Erik V.