Just got my spina DS1, and all I can say is WOW! John, you truly do a great job, I haven't gotten a chance to crank yet, but let me tell you, all the low end that the stock ones dont have, this one has, all the fullness that the stock one lacks, this one has. I use the spina ds1 for mostly my base tone and i cascade other pedals into it accordingly. John you truly do a great job! *tips hat* This pedal rocks!