One of the key causes of tuning frustration is string binding at the nut. TUSQ XL is impregnated with PTFE, the slipperiest substance on earth and alleviates the binding grip the nut has on the strings. Strings simply glide back into tune!
TUSQ XL is consistent from piece to piece, and within each piece, to offer you harmonically rich tones without the problems associated with natural materials.