frankly ... The good sq is vy subjective to each individual ... Some like bright vocal some like heavy base .. To me , bit one really play a vy vy critical part on it ... It depend how u tune and adjust the music to your preferences ... I have been studies and exploring the bit one tuning for almost 1 year and found the best tuner is actually ourself �� don expect those claimed pro tuner will fully devoted their skill to your car as every tuner will definitely reserve some bottom line to keep on the business .. Beside , their liking of sq may not suit to your liking as well .. I may not be superb in tuning but atleast i know my tuning are serving my ear pretty well ��
