What's the comparision between the Rival and Black Widow solid? I have a Black Widow drilled pin 4 1/2 from the pap and mb 90 degree which gives me medium length and great reaction in the back but not flippy. I just bought the Rival and want it to compliment the Black Widow. Not sure which type drilling would work better with this ball. Drilling it to be stronger than the Black Widow or weaker.