The Giant Step pedals are about as German, over the top pedals as you can imagine. You'd think that half of us Sonor nuts would have one just because it is the quintessential Sonor design.
For me, there are too many adjustments. I suffer from bad foot technique in part due to bad joints but also due to lack of focussed practice. I have a 600 series now that is probably the easiest to play that I have ever owned, and I have a spare 600. Fine tuning the GSP would occupy all my time, I think. I had them in the shop years ago, but can't remember if I had a personal one. I used one enough to know, that I prefer something simpler. I have had half a dozen of the Perfect Balance, but they never quite felt just right.
What is your experience with the Giant Step Series?
