I'd used the Martin Acoustic SP strings earlier and was extremely happy with their tone and overall playability, so I figured the MA535S would also be top-notch. How wrong I was! They sound extremely tinny (although phosophor bronze are supposed to sound warmer than 80/20 bronze) Also, in standard tuning, they don't bend even a semi-tone. So I had to drop down a whole step! Won't recommend them at all. In fact now I doubt if they're even original Martins. Perhaps Bajaao should look into this as well.