Appearance Parameter Comparison The following table shows the comparison of the parameters of Boll ALC vs Boll Spirit：   TIMO BOLL ALC TIMO BOLL SPIRIT Class OFF OFF- weight 88g 90g Thickness 5.8mm 5.8mm Style ATTACK ATTACK Plies 5W+2ALC 5W+2ALC Speed 9.0 8.0 Control 8.8 8.5 Spin 7.0 7.5 Stiffness 6.0 5.5 Hardness 6.2 6.0 … Continue reading Butterfly Timo Boll ALC VS Timo Boll Spirit Reviews