Dunlop Black Widow is very soft and spiny. Its average in the power department. Slightly less soft and spiny, but more powerful is MSV Focus Hex.
Head Men's Tennis Coach @ Yeshiva University. Pro Kennex Ki-5(R) & Gamma RZR 98 (L)
Dunlop Black Widow 17 (63lb) Babolat N.Vy 16 (64lb) USTA 4.5.